// script.aculo.us effects.js v1.7.1_beta3, Fri May 25 17:19:41 +0200 2007

// Copyright (c) 2005-2007 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
// Contributors:
//  Justin Palmer (http://encytemedia.com/)
//  Mark Pilgrim (http://diveintomark.org/)
//  Martin Bialasinki
// 
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/ 

// converts rgb() and #xxx to #xxxxxx format,  
// returns self (or first argument) if not convertable  
String.prototype.parseColor = function() {  
  var color = '#';
  if(this.slice(0,4) == 'rgb(') {  
    var cols = this.slice(4,this.length-1).split(',');  
    var i=0; do { color += parseInt(cols[i]).toColorPart() } while (++i<3);  
  } else {  
    if(this.slice(0,1) == '#') {  
      if(this.length==4) for(var i=1;i<4;i++) color += (this.charAt(i) + this.charAt(i)).toLowerCase();  
      if(this.length==7) color = this.toLowerCase();  
    }  
  }  
  return(color.length==7 ? color : (arguments[0] || this));  
}

/*--------------------------------------------------------------------------*/

Element.collectTextNodes = function(element) {  
  return $A($(element).childNodes).collect( function(node) {
    return (node.nodeType==3 ? node.nodeValue : 
      (node.hasChildNodes() ? Element.collectTextNodes(node) : ''));
  }).flatten().join('');
}

Element.collectTextNodesIgnoreClass = function(element, className) {  
  return $A($(element).childNodes).collect( function(node) {
    return (node.nodeType==3 ? node.nodeValue : 
      ((node.hasChildNodes() && !Element.hasClassName(node,className)) ? 
        Element.collectTextNodesIgnoreClass(node, className) : ''));
  }).flatten().join('');
}

Element.setContentZoom = function(element, percent) {
  element = $(element);  
  element.setStyle({fontSize: (percent/100) + 'em'});   
  if(Prototype.Browser.WebKit) window.scrollBy(0,0);
  return element;
}

Element.getInlineOpacity = function(element){
  return $(element).style.opacity || '';
}

Element.forceRerendering = function(element) {
  try {
    element = $(element);
    var n = document.createTextNode(' ');
    element.appendChild(n);
    element.removeChild(n);
  } catch(e) { }
};

/*--------------------------------------------------------------------------*/

Array.prototype.call = function() {
  var args = arguments;
  this.each(function(f){ f.apply(this, args) });
}

/*--------------------------------------------------------------------------*/

var Effect = {
  _elementDoesNotExistError: {
    name: 'ElementDoesNotExistError',
    message: 'The specified DOM element does not exist, but is required for this effect to operate'
  },
  tagifyText: function(element) {
    if(typeof Builder == 'undefined')
      throw("Effect.tagifyText requires including script.aculo.us' builder.js library");
      
    var tagifyStyle = 'position:relative';
    if(Prototype.Browser.IE) tagifyStyle += ';zoom:1';
    
    element = $(element);
    $A(element.childNodes).each( function(child) {
      if(child.nodeType==3) {
        child.nodeValue.toArray().each( function(character) {
          element.insertBefore(
            Builder.node('span',{style: tagifyStyle},
              character == ' ' ? String.fromCharCode(160) : character), 
              child);
        });
        Element.remove(child);
      }
    });
  },
  multiple: function(element, effect) {
    var elements;
    if(((typeof element == 'object') || 
        (typeof element == 'function')) && 
       (element.length))
      elements = element;
    else
      elements = $(element).childNodes;
      
    var options = Object.extend({
      speed: 0.1,
      delay: 0.0
    }, arguments[2] || {});
    var masterDelay = options.delay;

    $A(elements).each( function(element, index) {
      new effect(element, Object.extend(options, { delay: index * options.speed + masterDelay }));
    });
  },
  PAIRS: {
    'slide':  ['SlideDown','SlideUp'],
    'blind':  ['BlindDown','BlindUp'],
    'appear': ['Appear','Fade']
  },
  toggle: function(element, effect) {
    element = $(element);
    effect = (effect || 'appear').toLowerCase();
    var options = Object.extend({
      queue: { position:'end', scope:(element.id || 'global'), limit: 1 }
    }, arguments[2] || {});
    Effect[element.visible() ? 
      Effect.PAIRS[effect][1] : Effect.PAIRS[effect][0]](element, options);
  }
};

var Effect2 = Effect; // deprecated

/* ------------- transitions ------------- */

Effect.Transitions = {
  linear: Prototype.K,
  sinoidal: function(pos) {
    return (-Math.cos(pos*Math.PI)/2) + 0.5;
  },
  reverse: function(pos) {
    return 1-pos;
  },
  flicker: function(pos) {
    var pos = ((-Math.cos(pos*Math.PI)/4) + 0.75) + Math.random()/4;
    return (pos > 1 ? 1 : pos);
  },
  wobble: function(pos) {
    return (-Math.cos(pos*Math.PI*(9*pos))/2) + 0.5;
  },
  pulse: function(pos, pulses) { 
    pulses = pulses || 5; 
    return (
      Math.round((pos % (1/pulses)) * pulses) == 0 ? 
            ((pos * pulses * 2) - Math.floor(pos * pulses * 2)) : 
        1 - ((pos * pulses * 2) - Math.floor(pos * pulses * 2))
      );
  },
  none: function(pos) {
    return 0;
  },
  full: function(pos) {
    return 1;
  }
};

/* ------------- core effects ------------- */

Effect.ScopedQueue = Class.create();
Object.extend(Object.extend(Effect.ScopedQueue.prototype, Enumerable), {
  initialize: function() {
    this.effects  = [];
    this.interval = null;    
  },
  _each: function(iterator) {
    this.effects._each(iterator);
  },
  add: function(effect) {
    var timestamp = new Date().getTime();
    
    var position = (typeof effect.options.queue == 'string') ? 
      effect.options.queue : effect.options.queue.position;
    
    switch(position) {
      case 'front':
        // move unstarted effects after this effect  
        this.effects.findAll(function(e){ return e.state=='idle' }).each( function(e) {
            e.startOn  += effect.finishOn;
            e.finishOn += effect.finishOn;
          });
        break;
      case 'with-last':
        timestamp = this.effects.pluck('startOn').max() || timestamp;
        break;
      case 'end':
        // start effect after last queued effect has finished
        timestamp = this.effects.pluck('finishOn').max() || timestamp;
        break;
    }
    
    effect.startOn  += timestamp;
    effect.finishOn += timestamp;

    if(!effect.options.queue.limit || (this.effects.length < effect.options.queue.limit))
      this.effects.push(effect);
    
    if(!this.interval)
      this.interval = setInterval(this.loop.bind(this), 15);
  },
  remove: function(effect) {
    this.effects = this.effects.reject(function(e) { return e==effect });
    if(this.effects.length == 0) {
      clearInterval(this.interval);
      this.interval = null;
    }
  },
  loop: function() {
    var timePos = new Date().getTime();
    for(var i=0, len=this.effects.length;i<len;i++) 
      this.effects[i] && this.effects[i].loop(timePos);
  }
});

Effect.Queues = {
  instances: $H(),
  get: function(queueName) {
    if(typeof queueName != 'string') return queueName;
    
    if(!this.instances[queueName])
      this.instances[queueName] = new Effect.ScopedQueue();
      
    return this.instances[queueName];
  }
}
Effect.Queue = Effect.Queues.get('global');

Effect.DefaultOptions = {
  transition: Effect.Transitions.sinoidal,
  duration:   1.0,   // seconds
  fps:        100,   // 100= assume 66fps max.
  sync:       false, // true for combining
  from:       0.0,
  to:         1.0,
  delay:      0.0,
  queue:      'parallel'
}

Effect.Base = function() {};
Effect.Base.prototype = {
  position: null,
  start: function(options) {
    function codeForEvent(options,eventName){
      return (
        (options[eventName+'Internal'] ? 'this.options.'+eventName+'Internal(this);' : '') +
        (options[eventName] ? 'this.options.'+eventName+'(this);' : '')
      );
    }
    if(options.transition === false) options.transition = Effect.Transitions.linear;
    this.options      = Object.extend(Object.extend({},Effect.DefaultOptions), options || {});
    this.currentFrame = 0;
    this.state        = 'idle';
    this.startOn      = this.options.delay*1000;
    this.finishOn     = this.startOn+(this.options.duration*1000);
    this.fromToDelta  = this.options.to-this.options.from;
    this.totalTime    = this.finishOn-this.startOn;
    this.totalFrames  = this.options.fps*this.options.duration;
    
    eval('this.render = function(pos){ '+
      'if(this.state=="idle"){this.state="running";'+
      codeForEvent(options,'beforeSetup')+
      (this.setup ? 'this.setup();':'')+ 
      codeForEvent(options,'afterSetup')+
      '};if(this.state=="running"){'+
      'pos=this.options.transition(pos)*'+this.fromToDelta+'+'+this.options.from+';'+
      'this.position=pos;'+
      codeForEvent(options,'beforeUpdate')+
      (this.update ? 'this.update(pos);':'')+
      codeForEvent(options,'afterUpdate')+
      '}}');
    
    this.event('beforeStart');
    if(!this.options.sync)
      Effect.Queues.get(typeof this.options.queue == 'string' ? 
        'global' : this.options.queue.scope).add(this);
  },
  loop: function(timePos) {
    if(timePos >= this.startOn) {
      if(timePos >= this.finishOn) {
        this.render(1.0);
        this.cancel();
        this.event('beforeFinish');
        if(this.finish) this.finish(); 
        this.event('afterFinish');
        return;  
      }
      var pos   = (timePos - this.startOn) / this.totalTime,
          frame = Math.round(pos * this.totalFrames);
      if(frame > this.currentFrame) {
        this.render(pos);
        this.currentFrame = frame;
      }
    }
  },
  cancel: function() {
    if(!this.options.sync)
      Effect.Queues.get(typeof this.options.queue == 'string' ? 
        'global' : this.options.queue.scope).remove(this);
    this.state = 'finished';
  },
  event: function(eventName) {
    if(this.options[eventName + 'Internal']) this.options[eventName + 'Internal'](this);
    if(this.options[eventName]) this.options[eventName](this);
  },
  inspect: function() {
    var data = $H();
    for(property in this)
      if(typeof this[property] != 'function') data[property] = this[property];
    return '#<Effect:' + data.inspect() + ',options:' + $H(this.options).inspect() + '>';
  }
}

Effect.Parallel = Class.create();
Object.extend(Object.extend(Effect.Parallel.prototype, Effect.Base.prototype), {
  initialize: function(effects) {
    this.effects = effects || [];
    this.start(arguments[1]);
  },
  update: function(position) {
    this.effects.invoke('render', position);
  },
  finish: function(position) {
    this.effects.each( function(effect) {
      effect.render(1.0);
      effect.cancel();
      effect.event('beforeFinish');
      if(effect.finish) effect.finish(position);
      effect.event('afterFinish');
    });
  }
});

Effect.Event = Class.create();
Object.extend(Object.extend(Effect.Event.prototype, Effect.Base.prototype), {
  initialize: function() {
    var options = Object.extend({
      duration: 0
    }, arguments[0] || {});
    this.start(options);
  },
  update: Prototype.emptyFunction
});

Effect.Opacity = Class.create();
Object.extend(Object.extend(Effect.Opacity.prototype, Effect.Base.prototype), {
  initialize: function(element) {
    this.element = $(element);
    if(!this.element) throw(Effect._elementDoesNotExistError);
    // make this work on IE on elements without 'layout'
    if(Prototype.Browser.IE && (!this.element.currentStyle.hasLayout))
      this.element.setStyle({zoom: 1});
    var options = Object.extend({
      from: this.element.getOpacity() || 0.0,
      to:   1.0
    }, arguments[1] || {});
    this.start(options);
  },
  update: function(position) {
    this.element.setOpacity(position);
  }
});

Effect.Move = Class.create();
Object.extend(Object.extend(Effect.Move.prototype, Effect.Base.prototype), {
  initialize: function(element) {
    this.element = $(element);
    if(!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({
      x:    0,
      y:    0,
      mode: 'relative'
    }, arguments[1] || {});
    this.start(options);
  },
  setup: function() {
    // Bug in Opera: Opera returns the "real" position of a static element or
    // relative element that does not have top/left explicitly set.
    // ==> Always set top and left for position relative elements in your stylesheets 
    // (to 0 if you do not need them) 
    this.element.makePositioned();
    this.originalLeft = parseFloat(this.element.getStyle('left') || '0');
    this.originalTop  = parseFloat(this.element.getStyle('top')  || '0');
    if(this.options.mode == 'absolute') {
      // absolute movement, so we need to calc deltaX and deltaY
      this.options.x = this.options.x - this.originalLeft;
      this.options.y = this.options.y - this.originalTop;
    }
  },
  update: function(position) {
    this.element.setStyle({
      left: Math.round(this.options.x  * position + this.originalLeft) + 'px',
      top:  Math.round(this.options.y  * position + this.originalTop)  + 'px'
    });
  }
});

// for backwards compatibility
Effect.MoveBy = function(element, toTop, toLeft) {
  return new Effect.Move(element, 
    Object.extend({ x: toLeft, y: toTop }, arguments[3] || {}));
};

Effect.Scale = Class.create();
Object.extend(Object.extend(Effect.Scale.prototype, Effect.Base.prototype), {
  initialize: function(element, percent) {
    this.element = $(element);
    if(!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({
      scaleX: true,
      scaleY: true,
      scaleContent: true,
      scaleFromCenter: false,
      scaleMode: 'box',        // 'box' or 'contents' or {} with provided values
      scaleFrom: 100.0,
      scaleTo:   percent
    }, arguments[2] || {});
    this.start(options);
  },
  setup: function() {
    this.restoreAfterFinish = this.options.restoreAfterFinish || false;
    this.elementPositioning = this.element.getStyle('position');
    
    this.originalStyle = {};
    ['top','left','width','height','fontSize'].each( function(k) {
      this.originalStyle[k] = this.element.style[k];
    }.bind(this));
      
    this.originalTop  = this.element.offsetTop;
    this.originalLeft = this.element.offsetLeft;
    
    var fontSize = this.element.getStyle('font-size') || '100%';
    ['em','px','%','pt'].each( function(fontSizeType) {
      if(fontSize.indexOf(fontSizeType)>0) {
        this.fontSize     = parseFloat(fontSize);
        this.fontSizeType = fontSizeType;
      }
    }.bind(this));
    
    this.factor = (this.options.scaleTo - this.options.scaleFrom)/100;
    
    this.dims = null;
    if(this.options.scaleMode=='box')
      this.dims = [this.element.offsetHeight, this.element.offsetWidth];
    if(/^content/.test(this.options.scaleMode))
      this.dims = [this.element.scrollHeight, this.element.scrollWidth];
    if(!this.dims)
      this.dims = [this.options.scaleMode.originalHeight,
                   this.options.scaleMode.originalWidth];
  },
  update: function(position) {
    var currentScale = (this.options.scaleFrom/100.0) + (this.factor * position);
    if(this.options.scaleContent && this.fontSize)
      this.element.setStyle({fontSize: this.fontSize * currentScale + this.fontSizeType });
    this.setDimensions(this.dims[0] * currentScale, this.dims[1] * currentScale);
  },
  finish: function(position) {
    if(this.restoreAfterFinish) this.element.setStyle(this.originalStyle);
  },
  setDimensions: function(height, width) {
    var d = {};
    if(this.options.scaleX) d.width = Math.round(width) + 'px';
    if(this.options.scaleY) d.height = Math.round(height) + 'px';
    if(this.options.scaleFromCenter) {
      var topd  = (height - this.dims[0])/2;
      var leftd = (width  - this.dims[1])/2;
      if(this.elementPositioning == 'absolute') {
        if(this.options.scaleY) d.top = this.originalTop-topd + 'px';
        if(this.options.scaleX) d.left = this.originalLeft-leftd + 'px';
      } else {
        if(this.options.scaleY) d.top = -topd + 'px';
        if(this.options.scaleX) d.left = -leftd + 'px';
      }
    }
    this.element.setStyle(d);
  }
});

Effect.Highlight = Class.create();
Object.extend(Object.extend(Effect.Highlight.prototype, Effect.Base.prototype), {
  initialize: function(element) {
    this.element = $(element);
    if(!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({ startcolor: '#ffff99' }, arguments[1] || {});
    this.start(options);
  },
  setup: function() {
    // Prevent executing on elements not in the layout flow
    if(this.element.getStyle('display')=='none') { this.cancel(); return; }
    // Disable background image during the effect
    this.oldStyle = {};
    if (!this.options.keepBackgroundImage) {
      this.oldStyle.backgroundImage = this.element.getStyle('background-image');
      this.element.setStyle({backgroundImage: 'none'});
    }
    if(!this.options.endcolor)
      this.options.endcolor = this.element.getStyle('background-color').parseColor('#ffffff');
    if(!this.options.restorecolor)
      this.options.restorecolor = this.element.getStyle('background-color');
    // init color calculations
    this._base  = $R(0,2).map(function(i){ return parseInt(this.options.startcolor.slice(i*2+1,i*2+3),16) }.bind(this));
    this._delta = $R(0,2).map(function(i){ return parseInt(this.options.endcolor.slice(i*2+1,i*2+3),16)-this._base[i] }.bind(this));
  },
  update: function(position) {
    this.element.setStyle({backgroundColor: $R(0,2).inject('#',function(m,v,i){
      return m+(Math.round(this._base[i]+(this._delta[i]*position)).toColorPart()); }.bind(this)) });
  },
  finish: function() {
    this.element.setStyle(Object.extend(this.oldStyle, {
      backgroundColor: this.options.restorecolor
    }));
  }
});

Effect.ScrollTo = Class.create();
Object.extend(Object.extend(Effect.ScrollTo.prototype, Effect.Base.prototype), {
  initialize: function(element) {
    this.element = $(element);
    this.start(arguments[1] || {});
  },
  setup: function() {
    Position.prepare();
    var offsets = Position.cumulativeOffset(this.element);
    if(this.options.offset) offsets[1] += this.options.offset;
    var max = window.innerHeight ? 
      window.height - window.innerHeight :
      document.body.scrollHeight - 
        (document.documentElement.clientHeight ? 
          document.documentElement.clientHeight : document.body.clientHeight);
    this.scrollStart = Position.deltaY;
    this.delta = (offsets[1] > max ? max : offsets[1]) - this.scrollStart;
  },
  update: function(position) {
    Position.prepare();
    window.scrollTo(Position.deltaX, 
      this.scrollStart + (position*this.delta));
  }
});

/* ------------- combination effects ------------- */

Effect.Fade = function(element) {
  element = $(element);
  var oldOpacity = element.getInlineOpacity();
  var options = Object.extend({
  from: element.getOpacity() || 1.0,
  to:   0.0,
  afterFinishInternal: function(effect) { 
    if(effect.options.to!=0) return;
    effect.element.hide().setStyle({opacity: oldOpacity}); 
  }}, arguments[1] || {});
  return new Effect.Opacity(element,options);
}

Effect.Appear = function(element) {
  element = $(element);
  var options = Object.extend({
  from: (element.getStyle('display') == 'none' ? 0.0 : element.getOpacity() || 0.0),
  to:   1.0,
  // force Safari to render floated elements properly
  afterFinishInternal: function(effect) {
    effect.element.forceRerendering();
  },
  beforeSetup: function(effect) {
    effect.element.setOpacity(effect.options.from).show(); 
  }}, arguments[1] || {});
  return new Effect.Opacity(element,options);
}

Effect.Puff = function(element) {
  element = $(element);
  var oldStyle = { 
    opacity: element.getInlineOpacity(), 
    position: element.getStyle('position'),
    top:  element.style.top,
    left: element.style.left,
    width: element.style.width,
    height: element.style.height
  };
  return new Effect.Parallel(
   [ new Effect.Scale(element, 200, 
      { sync: true, scaleFromCenter: true, scaleContent: true, restoreAfterFinish: true }), 
     new Effect.Opacity(element, { sync: true, to: 0.0 } ) ], 
     Object.extend({ duration: 1.0, 
      beforeSetupInternal: function(effect) {
        Position.absolutize(effect.effects[0].element)
      },
      afterFinishInternal: function(effect) {
         effect.effects[0].element.hide().setStyle(oldStyle); }
     }, arguments[1] || {})
   );
}

Effect.BlindUp = function(element) {
  element = $(element);
  element.makeClipping();
  return new Effect.Scale(element, 0,
    Object.extend({ scaleContent: false, 
      scaleX: false, 
      restoreAfterFinish: true,
      afterFinishInternal: function(effect) {
        effect.element.hide().undoClipping();
      } 
    }, arguments[1] || {})
  );
}

Effect.BlindDown = function(element) {
  element = $(element);
  var elementDimensions = element.getDimensions();
  return new Effect.Scale(element, 100, Object.extend({ 
    scaleContent: false, 
    scaleX: false,
    scaleFrom: 0,
    scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
    restoreAfterFinish: true,
    afterSetup: function(effect) {
      effect.element.makeClipping().setStyle({height: '0px'}).show(); 
    },  
    afterFinishInternal: function(effect) {
      effect.element.undoClipping();
    }
  }, arguments[1] || {}));
}

Effect.SwitchOff = function(element) {
  element = $(element);
  var oldOpacity = element.getInlineOpacity();
  return new Effect.Appear(element, Object.extend({
    duration: 0.4,
    from: 0,
    transition: Effect.Transitions.flicker,
    afterFinishInternal: function(effect) {
      new Effect.Scale(effect.element, 1, { 
        duration: 0.3, scaleFromCenter: true,
        scaleX: false, scaleContent: false, restoreAfterFinish: true,
        beforeSetup: function(effect) { 
          effect.element.makePositioned().makeClipping();
        },
        afterFinishInternal: function(effect) {
          effect.element.hide().undoClipping().undoPositioned().setStyle({opacity: oldOpacity});
        }
      })
    }
  }, arguments[1] || {}));
}

Effect.DropOut = function(element) {
  element = $(element);
  var oldStyle = {
    top: element.getStyle('top'),
    left: element.getStyle('left'),
    opacity: element.getInlineOpacity() };
  return new Effect.Parallel(
    [ new Effect.Move(element, {x: 0, y: 100, sync: true }), 
      new Effect.Opacity(element, { sync: true, to: 0.0 }) ],
    Object.extend(
      { duration: 0.5,
        beforeSetup: function(effect) {
          effect.effects[0].element.makePositioned(); 
        },
        afterFinishInternal: function(effect) {
          effect.effects[0].element.hide().undoPositioned().setStyle(oldStyle);
        } 
      }, arguments[1] || {}));
}

Effect.Shake = function(element) {
  element = $(element);
  var oldStyle = {
    top: element.getStyle('top'),
    left: element.getStyle('left') };
    return new Effect.Move(element, 
      { x:  20, y: 0, duration: 0.05, afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x: -40, y: 0, duration: 0.1,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x:  40, y: 0, duration: 0.1,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x: -40, y: 0, duration: 0.1,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x:  40, y: 0, duration: 0.1,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x: -20, y: 0, duration: 0.05, afterFinishInternal: function(effect) {
        effect.element.undoPositioned().setStyle(oldStyle);
  }}) }}) }}) }}) }}) }});
}

Effect.SlideDown = function(element) {
  element = $(element).cleanWhitespace();
  // SlideDown need to have the content of the element wrapped in a container element with fixed height!
  var oldInnerBottom = element.down().getStyle('bottom');
  var elementDimensions = element.getDimensions();
  return new Effect.Scale(element, 100, Object.extend({ 
    scaleContent: false, 
    scaleX: false, 
    scaleFrom: window.opera ? 0 : 1,
    scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
    restoreAfterFinish: true,
    afterSetup: function(effect) {
      effect.element.makePositioned();
      effect.element.down().makePositioned();
      if(window.opera) effect.element.setStyle({top: ''});
      effect.element.makeClipping().setStyle({height: '0px'}).show(); 
    },
    afterUpdateInternal: function(effect) {
      effect.element.down().setStyle({bottom:
        (effect.dims[0] - effect.element.clientHeight) + 'px' }); 
    },
    afterFinishInternal: function(effect) {
      effect.element.undoClipping().undoPositioned();
      effect.element.down().undoPositioned().setStyle({bottom: oldInnerBottom}); }
    }, arguments[1] || {})
  );
}

Effect.SlideUp = function(element) {
  element = $(element).cleanWhitespace();
  var oldInnerBottom = element.down().getStyle('bottom');
  return new Effect.Scale(element, window.opera ? 0 : 1,
   Object.extend({ scaleContent: false, 
    scaleX: false, 
    scaleMode: 'box',
    scaleFrom: 100,
    restoreAfterFinish: true,
    beforeStartInternal: function(effect) {
      effect.element.makePositioned();
      effect.element.down().makePositioned();
      if(window.opera) effect.element.setStyle({top: ''});
      effect.element.makeClipping().show();
    },  
    afterUpdateInternal: function(effect) {
      effect.element.down().setStyle({bottom:
        (effect.dims[0] - effect.element.clientHeight) + 'px' });
    },
    afterFinishInternal: function(effect) {
      effect.element.hide().undoClipping().undoPositioned().setStyle({bottom: oldInnerBottom});
      effect.element.down().undoPositioned();
    }
   }, arguments[1] || {})
  );
}

// Bug in opera makes the TD containing this element expand for a instance after finish 
Effect.Squish = function(element) {
  return new Effect.Scale(element, window.opera ? 1 : 0, { 
    restoreAfterFinish: true,
    beforeSetup: function(effect) {
      effect.element.makeClipping(); 
    },  
    afterFinishInternal: function(effect) {
      effect.element.hide().undoClipping(); 
    }
  });
}

Effect.Grow = function(element) {
  element = $(element);
  var options = Object.extend({
    direction: 'center',
    moveTransition: Effect.Transitions.sinoidal,
    scaleTransition: Effect.Transitions.sinoidal,
    opacityTransition: Effect.Transitions.full
  }, arguments[1] || {});
  var oldStyle = {
    top: element.style.top,
    left: element.style.left,
    height: element.style.height,
    width: element.style.width,
    opacity: element.getInlineOpacity() };

  var dims = element.getDimensions();    
  var initialMoveX, initialMoveY;
  var moveX, moveY;
  
  switch (options.direction) {
    case 'top-left':
      initialMoveX = initialMoveY = moveX = moveY = 0; 
      break;
    case 'top-right':
      initialMoveX = dims.width;
      initialMoveY = moveY = 0;
      moveX = -dims.width;
      break;
    case 'bottom-left':
      initialMoveX = moveX = 0;
      initialMoveY = dims.height;
      moveY = -dims.height;
      break;
    case 'bottom-right':
      initialMoveX = dims.width;
      initialMoveY = dims.height;
      moveX = -dims.width;
      moveY = -dims.height;
      break;
    case 'center':
      initialMoveX = dims.width / 2;
      initialMoveY = dims.height / 2;
      moveX = -dims.width / 2;
      moveY = -dims.height / 2;
      break;
  }
  
  return new Effect.Move(element, {
    x: initialMoveX,
    y: initialMoveY,
    duration: 0.01, 
    beforeSetup: function(effect) {
      effect.element.hide().makeClipping().makePositioned();
    },
    afterFinishInternal: function(effect) {
      new Effect.Parallel(
        [ new Effect.Opacity(effect.element, { sync: true, to: 1.0, from: 0.0, transition: options.opacityTransition }),
          new Effect.Move(effect.element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition }),
          new Effect.Scale(effect.element, 100, {
            scaleMode: { originalHeight: dims.height, originalWidth: dims.width }, 
            sync: true, scaleFrom: window.opera ? 1 : 0, transition: options.scaleTransition, restoreAfterFinish: true})
        ], Object.extend({
             beforeSetup: function(effect) {
               effect.effects[0].element.setStyle({height: '0px'}).show(); 
             },
             afterFinishInternal: function(effect) {
               effect.effects[0].element.undoClipping().undoPositioned().setStyle(oldStyle); 
             }
           }, options)
      )
    }
  });
}

Effect.Shrink = function(element) {
  element = $(element);
  var options = Object.extend({
    direction: 'center',
    moveTransition: Effect.Transitions.sinoidal,
    scaleTransition: Effect.Transitions.sinoidal,
    opacityTransition: Effect.Transitions.none
  }, arguments[1] || {});
  var oldStyle = {
    top: element.style.top,
    left: element.style.left,
    height: element.style.height,
    width: element.style.width,
    opacity: element.getInlineOpacity() };

  var dims = element.getDimensions();
  var moveX, moveY;
  
  switch (options.direction) {
    case 'top-left':
      moveX = moveY = 0;
      break;
    case 'top-right':
      moveX = dims.width;
      moveY = 0;
      break;
    case 'bottom-left':
      moveX = 0;
      moveY = dims.height;
      break;
    case 'bottom-right':
      moveX = dims.width;
      moveY = dims.height;
      break;
    case 'center':  
      moveX = dims.width / 2;
      moveY = dims.height / 2;
      break;
  }
  
  return new Effect.Parallel(
    [ new Effect.Opacity(element, { sync: true, to: 0.0, from: 1.0, transition: options.opacityTransition }),
      new Effect.Scale(element, window.opera ? 1 : 0, { sync: true, transition: options.scaleTransition, restoreAfterFinish: true}),
      new Effect.Move(element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition })
    ], Object.extend({            
         beforeStartInternal: function(effect) {
           effect.effects[0].element.makePositioned().makeClipping(); 
         },
         afterFinishInternal: function(effect) {
           effect.effects[0].element.hide().undoClipping().undoPositioned().setStyle(oldStyle); }
       }, options)
  );
}

Effect.Pulsate = function(element) {
  element = $(element);
  var options    = arguments[1] || {};
  var oldOpacity = element.getInlineOpacity();
  var transition = options.transition || Effect.Transitions.sinoidal;
  var reverser   = function(pos){ return transition(1-Effect.Transitions.pulse(pos, options.pulses)) };
  reverser.bind(transition);
  return new Effect.Opacity(element, 
    Object.extend(Object.extend({  duration: 2.0, from: 0,
      afterFinishInternal: function(effect) { effect.element.setStyle({opacity: oldOpacity}); }
    }, options), {transition: reverser}));
}

Effect.Fold = function(element) {
  element = $(element);
  var oldStyle = {
    top: element.style.top,
    left: element.style.left,
    width: element.style.width,
    height: element.style.height };
  element.makeClipping();
  return new Effect.Scale(element, 5, Object.extend({   
    scaleContent: false,
    scaleX: false,
    afterFinishInternal: function(effect) {
    new Effect.Scale(element, 1, { 
      scaleContent: false, 
      scaleY: false,
      afterFinishInternal: function(effect) {
        effect.element.hide().undoClipping().setStyle(oldStyle);
      } });
  }}, arguments[1] || {}));
};

Effect.Morph = Class.create();
Object.extend(Object.extend(Effect.Morph.prototype, Effect.Base.prototype), {
  initialize: function(element) {
    this.element = $(element);
    if(!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({
      style: {}
    }, arguments[1] || {});
    if (typeof options.style == 'string') {
      if(options.style.indexOf(':') == -1) {
        var cssText = '', selector = '.' + options.style;
        $A(document.styleSheets).reverse().each(function(styleSheet) {
          if (styleSheet.cssRules) cssRules = styleSheet.cssRules;
          else if (styleSheet.rules) cssRules = styleSheet.rules;
          $A(cssRules).reverse().each(function(rule) {
            if (selector == rule.selectorText) {
              cssText = rule.style.cssText;
              throw $break;
            }
          });
          if (cssText) throw $break;
        });
        this.style = cssText.parseStyle();
        options.afterFinishInternal = function(effect){
          effect.element.addClassName(effect.options.style);
          effect.transforms.each(function(transform) {
            if(transform.style != 'opacity')
              effect.element.style[transform.style] = '';
          });
        }
      } else this.style = options.style.parseStyle();
    } else this.style = $H(options.style)
    this.start(options);
  },
  setup: function(){
    function parseColor(color){
      if(!color || ['rgba(0, 0, 0, 0)','transparent'].include(color)) color = '#ffffff';
      color = color.parseColor();
      return $R(0,2).map(function(i){
        return parseInt( color.slice(i*2+1,i*2+3), 16 ) 
      });
    }
    this.transforms = this.style.map(function(pair){
      var property = pair[0], value = pair[1], unit = null;

      if(value.parseColor('#zzzzzz') != '#zzzzzz') {
        value = value.parseColor();
        unit  = 'color';
      } else if(property == 'opacity') {
        value = parseFloat(value);
        if(Prototype.Browser.IE && (!this.element.currentStyle.hasLayout))
          this.element.setStyle({zoom: 1});
      } else if(Element.CSS_LENGTH.test(value)) {
          var components = value.match(/^([\+\-]?[0-9\.]+)(.*)$/);
          value = parseFloat(components[1]);
          unit = (components.length == 3) ? components[2] : null;
      }

      var originalValue = this.element.getStyle(property);
      return { 
        style: property.camelize(), 
        originalValue: unit=='color' ? parseColor(originalValue) : parseFloat(originalValue || 0), 
        targetValue: unit=='color' ? parseColor(value) : value,
        unit: unit
      };
    }.bind(this)).reject(function(transform){
      return (
        (transform.originalValue == transform.targetValue) ||
        (
          transform.unit != 'color' &&
          (isNaN(transform.originalValue) || isNaN(transform.targetValue))
        )
      )
    });
  },
  update: function(position) {
    var style = {}, transform, i = this.transforms.length;
    while(i--)
      style[(transform = this.transforms[i]).style] = 
        transform.unit=='color' ? '#'+
          (Math.round(transform.originalValue[0]+
            (transform.targetValue[0]-transform.originalValue[0])*position)).toColorPart() +
          (Math.round(transform.originalValue[1]+
            (transform.targetValue[1]-transform.originalValue[1])*position)).toColorPart() +
          (Math.round(transform.originalValue[2]+
            (transform.targetValue[2]-transform.originalValue[2])*position)).toColorPart() :
        transform.originalValue + Math.round(
          ((transform.targetValue - transform.originalValue) * position) * 1000)/1000 + transform.unit;
    this.element.setStyle(style, true);
  }
});

Effect.Transform = Class.create();
Object.extend(Effect.Transform.prototype, {
  initialize: function(tracks){
    this.tracks  = [];
    this.options = arguments[1] || {};
    this.addTracks(tracks);
  },
  addTracks: function(tracks){
    tracks.each(function(track){
      var data = $H(track).values().first();
      this.tracks.push($H({
        ids:     $H(track).keys().first(),
        effect:  Effect.Morph,
        options: { style: data }
      }));
    }.bind(this));
    return this;
  },
  play: function(){
    return new Effect.Parallel(
      this.tracks.map(function(track){
        var elements = [$(track.ids) || $$(track.ids)].flatten();
        return elements.map(function(e){ return new track.effect(e, Object.extend({ sync:true }, track.options)) });
      }).flatten(),
      this.options
    );
  }
});

Element.CSS_PROPERTIES = $w(
  'backgroundColor backgroundPosition borderBottomColor borderBottomStyle ' + 
  'borderBottomWidth borderLeftColor borderLeftStyle borderLeftWidth ' +
  'borderRightColor borderRightStyle borderRightWidth borderSpacing ' +
  'borderTopColor borderTopStyle borderTopWidth bottom clip color ' +
  'fontSize fontWeight height left letterSpacing lineHeight ' +
  'marginBottom marginLeft marginRight marginTop markerOffset maxHeight '+
  'maxWidth minHeight minWidth opacity outlineColor outlineOffset ' +
  'outlineWidth paddingBottom paddingLeft paddingRight paddingTop ' +
  'right textIndent top width wordSpacing zIndex');
  
Element.CSS_LENGTH = /^(([\+\-]?[0-9\.]+)(em|ex|px|in|cm|mm|pt|pc|\%))|0$/;

String.prototype.parseStyle = function(){
  var element = document.createElement('div');
  element.innerHTML = '<div style="' + this + '"></div>';
  var style = element.childNodes[0].style, styleRules = $H();
  
  Element.CSS_PROPERTIES.each(function(property){
    if(style[property]) styleRules[property] = style[property]; 
  });
  if(Prototype.Browser.IE && this.indexOf('opacity') > -1) {
    styleRules.opacity = this.match(/opacity:\s*((?:0|1)?(?:\.\d*)?)/)[1];
  }
  return styleRules;
};

Element.morph = function(element, style) {
  new Effect.Morph(element, Object.extend({ style: style }, arguments[2] || {}));
  return element;
};

['getInlineOpacity','forceRerendering','setContentZoom',
 'collectTextNodes','collectTextNodesIgnoreClass','morph'].each( 
  function(f) { Element.Methods[f] = Element[f]; }
);

Element.Methods.visualEffect = function(element, effect, options) {
  s = effect.dasherize().camelize();
  effect_class = s.charAt(0).toUpperCase() + s.substring(1);
  new Effect[effect_class](element, options);
  return $(element);
};

Element.addMethods();


#lightbox{
    position: absolute;
    top: 20px;
    left: 0;
    width: 100%;
    z-index: 100;
    text-align: center;
    line-height: 0;
    color:#151410;
    }

#lightbox a, #lightbox a:hover {
    border-bottom:none;
    color:#151410;
    text-decoration:underline;
}

#lightbox a img{ border: none; }

#outerImageContainer{
    position: relative;
    background-color: #fff;
    width: 250px;
    height: 250px;
    margin: 0 auto;
    }

#imageContainer{
    padding: 10px;
    }

#loading{
    position: absolute;
    top: 40%;
    left: 0%;
    height: 25%;
    width: 100%;
    text-align: center;
    line-height: 0;
    }
#loadingLink {
    display:block;
    margin:0 auto;
    padding:0;
    width:32px;
    height:32px;
    background:url("https://www.platformsandladders.com/s/loading.gif") center center no-repeat;
    text-indent:-9999px;
}
#hoverNav{
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    z-index: 10;
    }
#imageContainer>#hoverNav{ left: 0;}
#hoverNav a{ outline: none;}

#prevLinkImg, #nextLinkImg{
    width: 49%;
    height: 100%;
    background: transparent url("https://www.platformsandladders.com/s/blank.gif") no-repeat; /* Trick IE into showing hover */
    display: block;
    text-indent:-9999px;
    }
#prevLinkImg { left: 0; float: left;}
#nextLinkImg { right: 0; float: right;}
#prevLinkImg:hover, #prevLinkImg:visited:hover { background: url("https://www.platformsandladders.com/s/prevlabel.gif") left 15% no-repeat; }
#nextLinkImg:hover, #nextLinkImg:visited:hover { background: url("https://www.platformsandladders.com/s/nextlabel.gif") right 15% no-repeat; }


#imageDataContainer{
    font: 10px Verdana, Helvetica, sans-serif;
    background-color: #fff;
    margin: 0 auto;
    line-height: 1.4em;
    }

#imageData{
    padding:0 10px;
    }
#imageDetails{ width: 70%; float: left; text-align: left; } 
#caption{ font-weight: bold;    }
#numberDisplay{ display: block; clear: left; }          
#detailsNav{ display: block; clear: left; padding:0 0 10px 0;   }   
#prevLinkDetails { margin:0 8px 0 0; }      
#nextLinkDetails { margin:0 8px 0 0; }      
#closeLink {
    display:block;
    margin:0;
    padding:0 0 10px 0;
    text-decoration:none;
    float:right;
    width:66px;
    height:28px;
    background:url("https://www.platformsandladders.com/s/closelabel.gif") no-repeat;
    text-indent:-9999px;
    overflow:hidden;
}   
        
#overlay{
    position: absolute;
    top: 0;
    left: 0;
    z-index: 90;
    width: 100%;
    height: 500px;
    background-color: #151410;
    filter:alpha(opacity=60);
    -moz-opacity: 0.6;
    opacity: 0.6;
    }
    

.clearfix:after {
    content: "."; 
    display: block; 
    height: 0; 
    clear: both; 
    visibility: hidden;
    }

* html>body .clearfix {
    display: inline-block; 
    width: 100%;
    }

* html .clearfix {
    /* Hides from IE-mac \*/
    height: 1%;
    /* End hide from IE-mac */
    }   
    


// -----------------------------------------------------------------------------------
//
//  Lightbox Slideshow v1.2 (compatible with Prototype 1.6)
//  by Justin Barkhuff - http://www.justinbarkhuff.com/lab/lightbox_slideshow/
//  Updated: 2008-01-11
//
//  Largely based on Lightbox v2.02
//  by Lokesh Dhakar - http://huddletogether.com/projects/lightbox2/
//  3/31/06
//
//  Licensed under the Creative Commons Attribution 2.5 License - http://creativecommons.org/licenses/by/2.5/
//
//  The code inserts html at the bottom of the page that looks similar to this:
//
//  <div id="overlay"></div>
//  <div id="lightbox">
//      <div id="outerImageContainer">
//          <div id="imageContainer">
//              <img id="lightboxImage" />
//              <div id="hoverNav">
//                  <a href="javascript:void(0);" id="prevLinkImg">&laquo; prev</a>
//                  <a href="javascript:void(0);" id="nextLinkImg">next &raquo;</a>
//              </div>
//              <div id="loading">
//                  <a href="javascript:void(0);" id="loadingLink">loading</a>
//              </div>
//          </div>
//      </div>
//      <div id="imageDataContainer">
//          <div id="imageData">
//              <div id="imageDetails">
//                  <span id="caption"></span>
//                  <span id="numberDisplay"></span>
//                  <span id="detailsNav">
//                      <a id="prevLinkDetails" href="javascript:void(0);">&laquo; prev</a>
//                      <a id="nextLinkDetails" href="javascript:void(0);">next &raquo;</a>
//                      <a id="slideShowControl" href="javascript:void(0);">stop slideshow</a>
//                  </span>
//              </div>
//              <div id="close">
//                  <a id="closeLink" href="javascript:void(0);">close</a>
//              </div>
//          </div>
//      </div>
//  </div>
//
// -----------------------------------------------------------------------------------

//
//  Lightbox Object
//

var Lightbox = {    
    activeImage : null,
    badObjects : ['select','object','embed'],
    container : null,
    enableSlideshow : null,
    groupName : null,
    imageArray : [],
    options : null,
    overlayDuration : null,
    overlayOpacity : null,
    playSlides : null,
    refTags : ['a','area'],
    relAttribute : null,
    resizeDuration : null,
    slideShowTimer : null,
    startImage : null,
    
    //
    // initialize()
    // Constructor sets class properties and configuration options and
    // inserts html at the bottom of the page which is used to display the shadow 
    // overlay and the image container.
    //
    initialize: function(options) {
        if (!document.getElementsByTagName){ return; }
        
        this.options = $H({
            animate : true, // resizing animations
            autoPlay : true, // should slideshow start automatically
            borderSize : 10, // if you adjust the padding in the CSS, you will need to update this variable
            containerID : document, // lightbox container object
            enableSlideshow : true, // enable slideshow feature
            googleAnalytics : false, // track individual image views using Google Analytics
            imageDataLocation : 'south', // location of image caption information
            initImage : '', // ID of image link to automatically launch when upon script initialization
            loop : true, // whether to continuously loop slideshow images
            overlayDuration : .2, // time to fade in shadow overlay
            overlayOpacity : .8, // transparency of shadow overlay
            prefix : '', // ID prefix for all dynamically created html elements
            relAttribute : 'lightbox', // specifies the rel attribute value that triggers lightbox
            resizeSpeed : 7, // controls the speed of the image resizing (1=slowest and 10=fastest)
            showGroupName : false, // show group name of images in image details
            slideTime : 4, // time to display images during slideshow
            strings : { // allows for localization
                closeLink : 'close',
                loadingMsg : 'loading',
                nextLink : 'next &raquo;',
                prevLink : '&laquo; prev',
                startSlideshow : 'start slideshow',
                stopSlideshow : 'stop slideshow',
                numDisplayPrefix : 'Image',
                numDisplaySeparator : 'of'
            }
        }).merge(options);
        
        if(this.options.get('animate')){
            this.overlayDuration = Math.max(this.options.get('overlayDuration'),0);
            this.options.set('resizeSpeed',Math.max(Math.min(this.options.get('resizeSpeed'),10),1));
            this.resizeDuration = (11 - this.options.get('resizeSpeed')) * 0.15;
        }else{
            this.overlayDuration = 0;
            this.resizeDuration = 0;
        }
        
        this.enableSlideshow = this.options.get('enableSlideshow');
        this.overlayOpacity = Math.max(Math.min(this.options.get('overlayOpacity'),1),0);
        this.playSlides = this.options.get('autoPlay');
        this.container = $(this.options.get('containerID'));
        this.relAttribute = this.options.get('relAttribute');
        this.updateImageList();
        
        var objBody = this.container != document ? this.container : document.getElementsByTagName('body').item(0);
        
        var objOverlay = document.createElement('div');
        objOverlay.setAttribute('id',this.getID('overlay'));
        objOverlay.style.display = 'none';
        objBody.appendChild(objOverlay);
        Event.observe(objOverlay,'click',this.end.bindAsEventListener(this));
        
        var objLightbox = document.createElement('div');
        objLightbox.setAttribute('id',this.getID('lightbox'));
        objLightbox.style.display = 'none';
        objBody.appendChild(objLightbox);
        
        var objImageDataContainer = document.createElement('div');
        objImageDataContainer.setAttribute('id',this.getID('imageDataContainer'));
        objImageDataContainer.className = this.getID('clearfix');

        var objImageData = document.createElement('div');
        objImageData.setAttribute('id',this.getID('imageData'));
        objImageDataContainer.appendChild(objImageData);
    
        var objImageDetails = document.createElement('div');
        objImageDetails.setAttribute('id',this.getID('imageDetails'));
        objImageData.appendChild(objImageDetails);
    
        var objCaption = document.createElement('span');
        objCaption.setAttribute('id',this.getID('caption'));
        objImageDetails.appendChild(objCaption);
    
        var objNumberDisplay = document.createElement('span');
        objNumberDisplay.setAttribute('id',this.getID('numberDisplay'));
        objImageDetails.appendChild(objNumberDisplay);

        var objDetailsNav = document.createElement('span');
        objDetailsNav.setAttribute('id',this.getID('detailsNav'));
        objImageDetails.appendChild(objDetailsNav);

        var objPrevLink = document.createElement('a');
        objPrevLink.setAttribute('id',this.getID('prevLinkDetails'));
        objPrevLink.setAttribute('href','javascript:void(0);');
        objPrevLink.innerHTML = this.options.get('strings').prevLink;
        objDetailsNav.appendChild(objPrevLink);
        Event.observe(objPrevLink,'click',this.showPrev.bindAsEventListener(this));
        
        var objNextLink = document.createElement('a');
        objNextLink.setAttribute('id',this.getID('nextLinkDetails'));
        objNextLink.setAttribute('href','javascript:void(0);');
        objNextLink.innerHTML = this.options.get('strings').nextLink;
        objDetailsNav.appendChild(objNextLink);
        Event.observe(objNextLink,'click',this.showNext.bindAsEventListener(this));

        var objSlideShowControl = document.createElement('a');
        objSlideShowControl.setAttribute('id',this.getID('slideShowControl'));
        objSlideShowControl.setAttribute('href','javascript:void(0);');
        objDetailsNav.appendChild(objSlideShowControl);
        Event.observe(objSlideShowControl,'click',this.toggleSlideShow.bindAsEventListener(this));

        var objClose = document.createElement('div');
        objClose.setAttribute('id',this.getID('close'));
        objImageData.appendChild(objClose);
    
        var objCloseLink = document.createElement('a');
        objCloseLink.setAttribute('id',this.getID('closeLink'));
        objCloseLink.setAttribute('href','javascript:void(0);');
        objCloseLink.innerHTML = this.options.get('strings').closeLink;
        objClose.appendChild(objCloseLink); 
        Event.observe(objCloseLink,'click',this.end.bindAsEventListener(this));

        if(this.options.get('imageDataLocation') == 'north'){
            objLightbox.appendChild(objImageDataContainer);
        }
    
        var objOuterImageContainer = document.createElement('div');
        objOuterImageContainer.setAttribute('id',this.getID('outerImageContainer'));
        objLightbox.appendChild(objOuterImageContainer);

        var objImageContainer = document.createElement('div');
        objImageContainer.setAttribute('id',this.getID('imageContainer'));
        objOuterImageContainer.appendChild(objImageContainer);
    
        var objLightboxImage = document.createElement('img');
        objLightboxImage.setAttribute('id',this.getID('lightboxImage'));
        objImageContainer.appendChild(objLightboxImage);
    
        var objHoverNav = document.createElement('div');
        objHoverNav.setAttribute('id',this.getID('hoverNav'));
        objImageContainer.appendChild(objHoverNav);
    
        var objPrevLinkImg = document.createElement('a');
        objPrevLinkImg.setAttribute('id',this.getID('prevLinkImg'));
        objPrevLinkImg.setAttribute('href','javascript:void(0);');
        objHoverNav.appendChild(objPrevLinkImg);
        Event.observe(objPrevLinkImg,'click',this.showPrev.bindAsEventListener(this));
        
        var objNextLinkImg = document.createElement('a');
        objNextLinkImg.setAttribute('id',this.getID('nextLinkImg'));
        objNextLinkImg.setAttribute('href','javascript:void(0);');
        objHoverNav.appendChild(objNextLinkImg);
        Event.observe(objNextLinkImg,'click',this.showNext.bindAsEventListener(this));
    
        var objLoading = document.createElement('div');
        objLoading.setAttribute('id',this.getID('loading'));
        objImageContainer.appendChild(objLoading);
    
        var objLoadingLink = document.createElement('a');
        objLoadingLink.setAttribute('id',this.getID('loadingLink'));
        objLoadingLink.setAttribute('href','javascript:void(0);');
        objLoadingLink.innerHTML = this.options.get('strings').loadingMsg;
        objLoading.appendChild(objLoadingLink);
        Event.observe(objLoadingLink,'click',this.end.bindAsEventListener(this));
        
        if(this.options.get('imageDataLocation') != 'north'){
            objLightbox.appendChild(objImageDataContainer);
        }
        
        if(this.options.get('initImage') != ''){
            this.start($(this.options.get('initImage')));
        }
    },
    
    //
    //  updateImageList()
    //  Loops through specific tags within 'container' looking for 
    // 'lightbox' references and applies onclick events to them.
    //
    updateImageList: function(){
        var el, els, rel;
        for(var i=0; i < this.refTags.length; i++){
            els = this.container.getElementsByTagName(this.refTags[i]);
            for(var j=0; j < els.length; j++){
                el = els[j];
                rel = String(el.getAttribute('rel'));
                if (el.getAttribute('href') && (rel.toLowerCase().match(this.relAttribute))){
                    el.onclick = function(){Lightbox.start(this); return false;}
                }
            }
        }
    },
        
    //
    //  start()
    //  Display overlay and lightbox. If image is part of a set, add siblings to imageArray.
    //
    start: function(imageLink) {    

        this.hideBadObjects();

        // stretch overlay to fill page and fade in
        var pageSize = this.getPageSize();
        $(this.getID('overlay')).setStyle({height:pageSize.pageHeight+'px'});
        new Effect.Appear(this.getID('overlay'), { duration: this.overlayDuration, from: 0, to: this.overlayOpacity });

        this.imageArray = [];
        this.groupName = null;
        
        var rel = imageLink.getAttribute('rel');
        var imageTitle = '';
        
        // if image is NOT part of a group..
        if(rel == this.relAttribute){
            // add single image to imageArray
            imageTitle = imageLink.getAttribute('title') ? imageLink.getAttribute('title') : '';
            this.imageArray.push({'link':imageLink.getAttribute('href'), 'title':imageTitle});          
            this.startImage = 0;
        } else {
            // if image is part of a group..
            var els = this.container.getElementsByTagName(imageLink.tagName);
            // loop through anchors, find other images in group, and add them to imageArray
            for (var i=0; i<els.length; i++){
                var el = els[i];
                if (el.getAttribute('href') && (el.getAttribute('rel') == rel)){
                    imageTitle = el.getAttribute('title') ? el.getAttribute('title') : '';
                    this.imageArray.push({'link':el.getAttribute('href'),'title':imageTitle});
                    if(el == imageLink){
                        this.startImage = this.imageArray.length-1;
                    }
                }
            }
            // get group name
            this.groupName = rel.substring(this.relAttribute.length+1,rel.length-1);
        }

        // calculate top offset for the lightbox and display 
        var pageScroll = this.getPageScroll();
        var lightboxTop = pageScroll.y + (pageSize.winHeight / 15);

        $(this.getID('lightbox')).setStyle({top:lightboxTop+'px'}).show();
        this.changeImage(this.startImage);
    },

    //
    //  changeImage()
    //  Hide most elements and preload image in preparation for resizing image container.
    //
    changeImage: function(imageNum){    
        this.activeImage = imageNum;

        this.disableKeyboardNav();
        this.pauseSlideShow();

        // hide elements during transition
        $(this.getID('loading')).show();
        $(this.getID('lightboxImage')).hide();
        $(this.getID('hoverNav')).hide();
        $(this.getID('imageDataContainer')).hide();
        $(this.getID('numberDisplay')).hide();
        $(this.getID('detailsNav')).hide();
        
        var imgPreloader = new Image();
        
        // once image is preloaded, resize image container
        imgPreloader.onload=function(){
            $(Lightbox.getID('lightboxImage')).src = imgPreloader.src;
            Lightbox.resizeImageContainer(imgPreloader.width,imgPreloader.height);
        }
        imgPreloader.src = this.imageArray[this.activeImage].link;
        
        if(this.options.get('googleAnalytics')){
            urchinTracker(this.imageArray[this.activeImage].link);
        }
    },

    //
    //  resizeImageContainer()
    //
    resizeImageContainer: function(imgWidth,imgHeight) {
        // get current height and width
        var cDims = $(this.getID('outerImageContainer')).getDimensions();

        // scalars based on change from old to new
        var xScale = ((imgWidth  + (this.options.get('borderSize') * 2)) / cDims.width) * 100;
        var yScale = ((imgHeight  + (this.options.get('borderSize') * 2)) / cDims.height) * 100;

        // calculate size difference between new and old image, and resize if necessary
        var wDiff = (cDims.width - this.options.get('borderSize') * 2) - imgWidth;
        var hDiff = (cDims.height - this.options.get('borderSize') * 2) - imgHeight;

        if(!( hDiff == 0)){ new Effect.Scale(this.getID('outerImageContainer'), yScale, {scaleX: false, duration: this.resizeDuration, queue: 'front'}); }
        if(!( wDiff == 0)){ new Effect.Scale(this.getID('outerImageContainer'), xScale, {scaleY: false, delay: this.resizeDuration, duration: this.resizeDuration}); }

        // if new and old image are same size and no scaling transition is necessary, 
        // do a quick pause to prevent image flicker.
        if((hDiff == 0) && (wDiff == 0)){
            if(navigator.appVersion.indexOf('MSIE')!=-1){ this.pause(250); } else { this.pause(100);} 
        }

        $(this.getID('prevLinkImg')).setStyle({height:imgHeight+'px'});
        $(this.getID('nextLinkImg')).setStyle({height:imgHeight+'px'});
        $(this.getID('imageDataContainer')).setStyle({width:(imgWidth+(this.options.get('borderSize') * 2))+'px'});

        this.showImage();
    },
    
    //
    //  showImage()
    //  Display image and begin preloading neighbors.
    //
    showImage: function(){
        $(this.getID('loading')).hide();
        new Effect.Appear(this.getID('lightboxImage'), { duration: 0.5, queue: 'end', afterFinish: function(){  Lightbox.updateDetails(); } });
        this.preloadNeighborImages();
    },

    //
    //  updateDetails()
    //  Display caption, image number, and bottom nav.
    //
    updateDetails: function() {
        $(this.getID('caption')).show();
        $(this.getID('caption')).update(this.imageArray[this.activeImage].title);
        
        // if image is part of set display 'Image x of y' 
        if(this.imageArray.length > 1){
            var num_display = this.options.get('strings').numDisplayPrefix + ' ' + eval(this.activeImage + 1) + ' ' + this.options.get('strings').numDisplaySeparator + ' ' + this.imageArray.length;
            if(this.options.get('showGroupName') && this.groupName != ''){
                num_display += ' '+this.options.get('strings').numDisplaySeparator+' '+this.groupName;
            }
            $(this.getID('numberDisplay')).update(num_display).show();
            if(!this.enableSlideshow){
                $(this.getID('slideShowControl')).hide();
            }
            $(this.getID('detailsNav')).show();
        }
        
        new Effect.Parallel(
            [ new Effect.SlideDown( this.getID('imageDataContainer'), { sync: true }), 
              new Effect.Appear(this.getID('imageDataContainer'), { sync: true }) ], 
            { duration:.65, afterFinish: function() { Lightbox.updateNav();} } 
        );
    },
    
    //
    //  updateNav()
    //  Display appropriate previous and next hover navigation.
    //
    updateNav: function() {
        if(this.imageArray.length > 1){
            $(this.getID('hoverNav')).show();
            if(this.enableSlideshow){
                if(this.playSlides){
                    this.startSlideShow();
                } else {
                    this.stopSlideShow();
                }
            }
        }
        this.enableKeyboardNav();
    },
    //
    //  startSlideShow()
    //  Starts the slide show
    //
    startSlideShow: function(){
        this.playSlides = true;
        this.slideShowTimer = new PeriodicalExecuter(function(pe){ Lightbox.showNext(); pe.stop(); },this.options.get('slideTime'));
        $(this.getID('slideShowControl')).update(this.options.get('strings').stopSlideshow);
    },
    
    //
    //  stopSlideShow()
    //  Stops the slide show
    //
    stopSlideShow: function(){
        this.playSlides = false;
        if(this.slideShowTimer){
            this.slideShowTimer.stop();
        }
        $(this.getID('slideShowControl')).update(this.options.get('strings').startSlideshow);
    },

    //
    //  stopSlideShow()
    //  Stops the slide show
    //
    toggleSlideShow: function(){
        if(this.playSlides){
            this.stopSlideShow();
        }else{
            this.startSlideShow();
        }
    },

    //
    //  pauseSlideShow()
    //  Pauses the slide show (doesn't change the value of this.playSlides)
    //
    pauseSlideShow: function(){
        if(this.slideShowTimer){
            this.slideShowTimer.stop();
        }
    },
    
    //
    //  showNext()
    //  Display the next image in a group
    //
    showNext : function(){
        if(this.imageArray.length > 1){
            if(!this.options.get('loop') && ((this.activeImage == this.imageArray.length - 1 && this.startImage == 0) || (this.activeImage+1 == this.startImage))){
                return this.end();
            }
            if(this.activeImage == this.imageArray.length - 1){
                this.changeImage(0);
            }else{
                this.changeImage(this.activeImage+1);
            }
        }
    },

    //
    //  showPrev()
    //  Display the next image in a group
    //
    showPrev : function(){
        if(this.imageArray.length > 1){
            if(this.activeImage == 0){
                this.changeImage(this.imageArray.length - 1);
            }else{
                this.changeImage(this.activeImage-1);
            }
        }
    },
    
    //
    //  showFirst()
    //  Display the first image in a group
    //
    showFirst : function(){
        if(this.imageArray.length > 1){
            this.changeImage(0);
        }
    },

    //
    //  showFirst()
    //  Display the first image in a group
    //
    showLast : function(){
        if(this.imageArray.length > 1){
            this.changeImage(this.imageArray.length - 1);
        }
    },

    //
    //  enableKeyboardNav()
    //
    enableKeyboardNav: function() {
        document.onkeydown = this.keyboardAction; 
    },

    //
    //  disableKeyboardNav()
    //
    disableKeyboardNav: function() {
        document.onkeydown = '';
    },

    //
    //  keyboardAction()
    //
    keyboardAction: function(e) {
        if (e == null) { // ie
            keycode = event.keyCode;
        } else { // mozilla
            keycode = e.which;
        }

        key = String.fromCharCode(keycode).toLowerCase();
        
        if(key == 'x' || key == 'o' || key == 'c'){ // close lightbox
            Lightbox.end();
        } else if(key == 'p' || key == '%'){ // display previous image
            Lightbox.showPrev();
        } else if(key == 'n' || key =='\''){ // display next image
            Lightbox.showNext();
        } else if(key == 'f'){ // display first image
            Lightbox.showFirst();
        } else if(key == 'l'){ // display last image
            Lightbox.showLast();
        } else if(key == 's'){ // toggle slideshow
            if(Lightbox.imageArray.length > 0 && Lightbox.options.enableSlideshow){
                Lightbox.toggleSlideShow();
            }
        }
    },

    //
    //  preloadNeighborImages()
    //  Preload previous and next images.
    //
    preloadNeighborImages: function(){
        var nextImageID = this.imageArray.length - 1 == this.activeImage ? 0 : this.activeImage + 1;
        nextImage = new Image();
        nextImage.src = this.imageArray[nextImageID].link

        var prevImageID = this.activeImage == 0 ? this.imageArray.length - 1 : this.activeImage - 1;
        prevImage = new Image();
        prevImage.src = this.imageArray[prevImageID].link;
    },

    //
    //  end()
    //
    end: function() {
        this.disableKeyboardNav();
        this.pauseSlideShow();
        $(this.getID('lightbox')).hide();
        new Effect.Fade(this.getID('overlay'), { duration:this.overlayDuration });
        this.showBadObjects();
    },
    
    //
    //  showBadObjects()
    //
    showBadObjects: function (){
        var els;
        var tags = Lightbox.badObjects;
        for(var i=0; i<tags.length; i++){
            els = document.getElementsByTagName(tags[i]);
            for(var j=0; j<els.length; j++){
                $(els[j]).setStyle({visibility:'visible'});
            }
        }
    },
    
    //
    //  hideBadObjects()
    //
    hideBadObjects: function (){
        var els;
        var tags = Lightbox.badObjects;
        for(var i=0; i<tags.length; i++){
            els = document.getElementsByTagName(tags[i]);
            for(var j=0; j<els.length; j++){
                $(els[j]).setStyle({visibility:'hidden'});
            }
        }
    },
        
    //
    // pause(numberMillis)
    // Pauses code execution for specified time. Uses busy code, not good.
    // Code from http://www.faqts.com/knowledge_base/view.phtml/aid/1602
    //
    pause: function(numberMillis) {
        var now = new Date();
        var exitTime = now.getTime() + numberMillis;
        while(true){
            now = new Date();
            if (now.getTime() > exitTime)
                return;
        }
    },

    //
    // getPageScroll()
    // Returns array with x,y page scroll values.
    // Core code from - quirksmode.org
    //
    getPageScroll: function(){
        var x,y;
        if (self.pageYOffset) {
            x = self.pageXOffset;
            y = self.pageYOffset;
        } else if (document.documentElement && document.documentElement.scrollTop){  // Explorer 6 Strict
            x = document.documentElement.scrollLeft;
            y = document.documentElement.scrollTop;
        } else if (document.body) {// all other Explorers
            x = document.body.scrollLeft;
            y = document.body.scrollTop;
        }
        return {x:x,y:y};
    },

    //
    // getPageSize()
    // Returns array with page width, height and window width, height
    // Core code from - quirksmode.org
    // Edit for Firefox by pHaez
    //
    getPageSize: function(){
        var scrollX,scrollY,windowX,windowY,pageX,pageY;
        if (window.innerHeight && window.scrollMaxY) {  
            scrollX = document.body.scrollWidth;
            scrollY = window.innerHeight + window.scrollMaxY;
        } else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
            scrollX = document.body.scrollWidth;
            scrollY = document.body.scrollHeight;
        } else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
            scrollX = document.body.offsetWidth;
            scrollY = document.body.offsetHeight;
        }
        
        if (self.innerHeight) { // all except Explorer
            windowX = self.innerWidth;
            windowY = self.innerHeight;
        } else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
            windowX = document.documentElement.clientWidth;
            windowY = document.documentElement.clientHeight;
        } else if (document.body) { // other Explorers
            windowX = document.body.clientWidth;
            windowY = document.body.clientHeight;
        }   
        
        pageY = (scrollY < windowY) ? windowY : scrollY; // for small pages with total height less then height of the viewport
        pageX = (scrollX < windowX) ? windowX : scrollX; // for small pages with total width less then width of the viewport
    
        return {pageWidth:pageX,pageHeight:pageY,winWidth:windowX,winHeight:windowY};
    },

    //
    // getID()
    // Returns formatted Lightbox element ID
    //
    getID: function(id){
        return this.options.get('prefix')+id;
    }
}

// -----------------------------------------------------------------------------------

Event.observe(window,'load',function(){ Lightbox.initialize(); });




// script.aculo.us scriptaculous.js v1.7.1_beta3, Fri May 25 17:19:41 +0200 2007 // Copyright (c) 2005-2007 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us) // // Permission is hereby granted, free of charge, to any person obtaining // a copy of this software and associated documentation files (the // "Software"), to deal in the Software without restriction, including // without limitation the rights to use, copy, modify, merge, publish, // distribute, sublicense, and/or sell copies of the Software, and to // permit persons to whom the Software is furnished to do so, subject to // the following conditions: // // The above copyright notice and this permission notice shall be // included in all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. // // For details, see the script.aculo.us web site: http://script.aculo.us/ var Scriptaculous = { Version: '1.7.1_beta3', require: function(libraryName) { // inserting via DOM fails in Safari 2.0, so brute force approach document.write(''); }, REQUIRED_PROTOTYPE: '1.5.1', load: function() { function convertVersionString(versionString){ var r = versionString.split('.'); return parseInt(r[0])*100000 + parseInt(r[1])*1000 + parseInt(r[2]); } if((typeof Prototype=='undefined') || (typeof Element == 'undefined') || (typeof Element.Methods=='undefined') || (convertVersionString(Prototype.Version) < convertVersionString(Scriptaculous.REQUIRED_PROTOTYPE))) throw("script.aculo.us requires the Prototype JavaScript framework >= " + Scriptaculous.REQUIRED_PROTOTYPE); $A(document.getElementsByTagName("script")).findAll( function(s) { return (s.src && s.src.match(/scriptaculous\.js(\?.*)?$/)) }).each( function(s) { var path = s.src.replace(/scriptaculous\.js(\?.*)?$/,''); var includes = s.src.match(/\?.*load=([a-z,]*)/); (includes ? includes[1] : 'builder,effects,dragdrop,controls,slider,sound').split(',').each( function(include) { Scriptaculous.require(path+include+'.js') }); }); } } Scriptaculous.load();


/* Prototype JavaScript framework, version 1.5.1 * (c) 2005-2007 Sam Stephenson * * Prototype is freely distributable under the terms of an MIT-style license. * For details, see the Prototype web site: http://www.prototypejs.org/ * /*--------------------------------------------------------------------------*/ var Prototype = { Version: '1.5.1', Browser: { IE: !!(window.attachEvent && !window.opera), Opera: !!window.opera, WebKit: navigator.userAgent.indexOf('AppleWebKit/') > -1, Gecko: navigator.userAgent.indexOf('Gecko') > -1 && navigator.userAgent.indexOf('KHTML') == -1 }, BrowserFeatures: { XPath: !!document.evaluate, ElementExtensions: !!window.HTMLElement, SpecificElementExtensions: (document.createElement('div').__proto__ !== document.createElement('form').__proto__) }, ScriptFragment: ']*>([\u0001-\uFFFF]*?)', JSONFilter: /^\/\*-secure-\s*(.*)\s*\*\/\s*$/, emptyFunction: function() { }, K: function(x) { return x } } var Class = { create: function() { return function() { this.initialize.apply(this, arguments); } } } var Abstract = new Object(); Object.extend = function(destination, source) { for (var property in source) { destination[property] = source[property]; } return destination; } Object.extend(Object, { inspect: function(object) { try { if (object === undefined) return 'undefined'; if (object === null) return 'null'; return object.inspect ? object.inspect() : object.toString(); } catch (e) { if (e instanceof RangeError) return '...'; throw e; } }, toJSON: function(object) { var type = typeof object; switch(type) { case 'undefined': case 'function': case 'unknown': return; case 'boolean': return object.toString(); } if (object === null) return 'null'; if (object.toJSON) return object.toJSON(); if (object.ownerDocument === document) return; var results = []; for (var property in object) { var value = Object.toJSON(object[property]); if (value !== undefined) results.push(property.toJSON() + ': ' + value); } return '{' + results.join(', ') + '}'; }, keys: function(object) { var keys = []; for (var property in object) keys.push(property); return keys; }, values: function(object) { var values = []; for (var property in object) values.push(object[property]); return values; }, clone: function(object) { return Object.extend({}, object); } }); Function.prototype.bind = function() { var __method = this, args = $A(arguments), object = args.shift(); return function() { return __method.apply(object, args.concat($A(arguments))); } } Function.prototype.bindAsEventListener = function(object) { var __method = this, args = $A(arguments), object = args.shift(); return function(event) { return __method.apply(object, [event || window.event].concat(args)); } } Object.extend(Number.prototype, { toColorPart: function() { return this.toPaddedString(2, 16); }, succ: function() { return this + 1; }, times: function(iterator) { $R(0, this, true).each(iterator); return this; }, toPaddedString: function(length, radix) { var string = this.toString(radix || 10); return '0'.times(length - string.length) + string; }, toJSON: function() { return isFinite(this) ? this.toString() : 'null'; } }); Date.prototype.toJSON = function() { return '"' + this.getFullYear() + '-' + (this.getMonth() + 1).toPaddedString(2) + '-' + this.getDate().toPaddedString(2) + 'T' + this.getHours().toPaddedString(2) + ':' + this.getMinutes().toPaddedString(2) + ':' + this.getSeconds().toPaddedString(2) + '"'; }; var Try = { these: function() { var returnValue; for (var i = 0, length = arguments.length; i < length; i++) { var lambda = arguments[i]; try { returnValue = lambda(); break; } catch (e) {} } return returnValue; } } /*--------------------------------------------------------------------------*/ var PeriodicalExecuter = Class.create(); PeriodicalExecuter.prototype = { initialize: function(callback, frequency) { this.callback = callback; this.frequency = frequency; this.currentlyExecuting = false; this.registerCallback(); }, registerCallback: function() { this.timer = setInterval(this.onTimerEvent.bind(this), this.frequency * 1000); }, stop: function() { if (!this.timer) return; clearInterval(this.timer); this.timer = null; }, onTimerEvent: function() { if (!this.currentlyExecuting) { try { this.currentlyExecuting = true; this.callback(this); } finally { this.currentlyExecuting = false; } } } } Object.extend(String, { interpret: function(value) { return value == null ? '' : String(value); }, specialChar: { '\b': '\\b', '\t': '\\t', '\n': '\\n', '\f': '\\f', '\r': '\\r', '\\': '\\\\' } }); Object.extend(String.prototype, { gsub: function(pattern, replacement) { var result = '', source = this, match; replacement = arguments.callee.prepareReplacement(replacement); while (source.length > 0) { if (match = source.match(pattern)) { result += source.slice(0, match.index); result += String.interpret(replacement(match)); source = source.slice(match.index + match[0].length); } else { result += source, source = ''; } } return result; }, sub: function(pattern, replacement, count) { replacement = this.gsub.prepareReplacement(replacement); count = count === undefined ? 1 : count; return this.gsub(pattern, function(match) { if (--count < 0) return match[0]; return replacement(match); }); }, scan: function(pattern, iterator) { this.gsub(pattern, iterator); return this; }, truncate: function(length, truncation) { length = length || 30; truncation = truncation === undefined ? '...' : truncation; return this.length > length ? this.slice(0, length - truncation.length) + truncation : this; }, strip: function() { return this.replace(/^\s+/, '').replace(/\s+$/, ''); }, stripTags: function() { return this.replace(/]+>/gi, ''); }, stripScripts: function() { return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), ''); }, extractScripts: function() { var matchAll = new RegExp(Prototype.ScriptFragment, 'img'); var matchOne = new RegExp(Prototype.ScriptFragment, 'im'); return (this.match(matchAll) || []).map(function(scriptTag) { return (scriptTag.match(matchOne) || ['', ''])[1]; }); }, evalScripts: function() { return this.extractScripts().map(function(script) { return eval(script) }); }, escapeHTML: function() { var self = arguments.callee; self.text.data = this; return self.div.innerHTML; }, unescapeHTML: function() { var div = document.createElement('div'); div.innerHTML = this.stripTags(); return div.childNodes[0] ? (div.childNodes.length > 1 ? $A(div.childNodes).inject('', function(memo, node) { return memo+node.nodeValue }) : div.childNodes[0].nodeValue) : ''; }, toQueryParams: function(separator) { var match = this.strip().match(/([^?#]*)(#.*)?$/); if (!match) return {}; return match[1].split(separator || '&').inject({}, function(hash, pair) { if ((pair = pair.split('='))[0]) { var key = decodeURIComponent(pair.shift()); var value = pair.length > 1 ? pair.join('=') : pair[0]; if (value != undefined) value = decodeURIComponent(value); if (key in hash) { if (hash[key].constructor != Array) hash[key] = [hash[key]]; hash[key].push(value); } else hash[key] = value; } return hash; }); }, toArray: function() { return this.split(''); }, succ: function() { return this.slice(0, this.length - 1) + String.fromCharCode(this.charCodeAt(this.length - 1) + 1); }, times: function(count) { var result = ''; for (var i = 0; i < count; i++) result += this; return result; }, camelize: function() { var parts = this.split('-'), len = parts.length; if (len == 1) return parts[0]; var camelized = this.charAt(0) == '-' ? parts[0].charAt(0).toUpperCase() + parts[0].substring(1) : parts[0]; for (var i = 1; i < len; i++) camelized += parts[i].charAt(0).toUpperCase() + parts[i].substring(1); return camelized; }, capitalize: function() { return this.charAt(0).toUpperCase() + this.substring(1).toLowerCase(); }, underscore: function() { return this.gsub(/::/, '/').gsub(/([A-Z]+)([A-Z][a-z])/,'#{1}_#{2}').gsub(/([a-z\d])([A-Z])/,'#{1}_#{2}').gsub(/-/,'_').toLowerCase(); }, dasherize: function() { return this.gsub(/_/,'-'); }, inspect: function(useDoubleQuotes) { var escapedString = this.gsub(/[\x00-\x1f\\]/, function(match) { var character = String.specialChar[match[0]]; return character ? character : '\\u00' + match[0].charCodeAt().toPaddedString(2, 16); }); if (useDoubleQuotes) return '"' + escapedString.replace(/"/g, '\\"') + '"'; return "'" + escapedString.replace(/'/g, '\\\'') + "'"; }, toJSON: function() { return this.inspect(true); }, unfilterJSON: function(filter) { return this.sub(filter || Prototype.JSONFilter, '#{1}'); }, evalJSON: function(sanitize) { var json = this.unfilterJSON(); try { if (!sanitize || (/^("(\\.|[^"\\\n\r])*?"|[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t])+?$/.test(json))) return eval('(' + json + ')'); } catch (e) { } throw new SyntaxError('Badly formed JSON string: ' + this.inspect()); }, include: function(pattern) { return this.indexOf(pattern) > -1; }, startsWith: function(pattern) { return this.indexOf(pattern) === 0; }, endsWith: function(pattern) { var d = this.length - pattern.length; return d >= 0 && this.lastIndexOf(pattern) === d; }, empty: function() { return this == ''; }, blank: function() { return /^\s*$/.test(this); } }); if (Prototype.Browser.WebKit || Prototype.Browser.IE) Object.extend(String.prototype, { escapeHTML: function() { return this.replace(/&/g,'&').replace(/</g,'<').replace(/>/g,'>'); }, unescapeHTML: function() { return this.replace(/&/g,'&').replace(/</g,'<').replace(/>/g,'>'); } }); String.prototype.gsub.prepareReplacement = function(replacement) { if (typeof replacement == 'function') return replacement; var template = new Template(replacement); return function(match) { return template.evaluate(match) }; } String.prototype.parseQuery = String.prototype.toQueryParams; Object.extend(String.prototype.escapeHTML, { div: document.createElement('div'), text: document.createTextNode('') }); with (String.prototype.escapeHTML) div.appendChild(text); var Template = Class.create(); Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/; Template.prototype = { initialize: function(template, pattern) { this.template = template.toString(); this.pattern = pattern || Template.Pattern; }, evaluate: function(object) { return this.template.gsub(this.pattern, function(match) { var before = match[1]; if (before == '\\') return match[2]; return before + String.interpret(object[match[3]]); }); } } var $break = {}, $continue = new Error('"throw $continue" is deprecated, use "return" instead'); var Enumerable = { each: function(iterator) { var index = 0; try { this._each(function(value) { iterator(value, index++); }); } catch (e) { if (e != $break) throw e; } return this; }, eachSlice: function(number, iterator) { var index = -number, slices = [], array = this.toArray(); while ((index += number) < array.length) slices.push(array.slice(index, index+number)); return slices.map(iterator); }, all: function(iterator) { var result = true; this.each(function(value, index) { result = result && !!(iterator || Prototype.K)(value, index); if (!result) throw $break; }); return result; }, any: function(iterator) { var result = false; this.each(function(value, index) { if (result = !!(iterator || Prototype.K)(value, index)) throw $break; }); return result; }, collect: function(iterator) { var results = []; this.each(function(value, index) { results.push((iterator || Prototype.K)(value, index)); }); return results; }, detect: function(iterator) { var result; this.each(function(value, index) { if (iterator(value, index)) { result = value; throw $break; } }); return result; }, findAll: function(iterator) { var results = []; this.each(function(value, index) { if (iterator(value, index)) results.push(value); }); return results; }, grep: function(pattern, iterator) { var results = []; this.each(function(value, index) { var stringValue = value.toString(); if (stringValue.match(pattern)) results.push((iterator || Prototype.K)(value, index)); }) return results; }, include: function(object) { var found = false; this.each(function(value) { if (value == object) { found = true; throw $break; } }); return found; }, inGroupsOf: function(number, fillWith) { fillWith = fillWith === undefined ? null : fillWith; return this.eachSlice(number, function(slice) { while(slice.length < number) slice.push(fillWith); return slice; }); }, inject: function(memo, iterator) { this.each(function(value, index) { memo = iterator(memo, value, index); }); return memo; }, invoke: function(method) { var args = $A(arguments).slice(1); return this.map(function(value) { return value[method].apply(value, args); }); }, max: function(iterator) { var result; this.each(function(value, index) { value = (iterator || Prototype.K)(value, index); if (result == undefined || value >= result) result = value; }); return result; }, min: function(iterator) { var result; this.each(function(value, index) { value = (iterator || Prototype.K)(value, index); if (result == undefined || value < result) result = value; }); return result; }, partition: function(iterator) { var trues = [], falses = []; this.each(function(value, index) { ((iterator || Prototype.K)(value, index) ? trues : falses).push(value); }); return [trues, falses]; }, pluck: function(property) { var results = []; this.each(function(value, index) { results.push(value[property]); }); return results; }, reject: function(iterator) { var results = []; this.each(function(value, index) { if (!iterator(value, index)) results.push(value); }); return results; }, sortBy: function(iterator) { return this.map(function(value, index) { return {value: value, criteria: iterator(value, index)}; }).sort(function(left, right) { var a = left.criteria, b = right.criteria; return a < b ? -1 : a > b ? 1 : 0; }).pluck('value'); }, toArray: function() { return this.map(); }, zip: function() { var iterator = Prototype.K, args = $A(arguments); if (typeof args.last() == 'function') iterator = args.pop(); var collections = [this].concat(args).map($A); return this.map(function(value, index) { return iterator(collections.pluck(index)); }); }, size: function() { return this.toArray().length; }, inspect: function() { return '#'; } } Object.extend(Enumerable, { map: Enumerable.collect, find: Enumerable.detect, select: Enumerable.findAll, member: Enumerable.include, entries: Enumerable.toArray }); var $A = Array.from = function(iterable) { if (!iterable) return []; if (iterable.toArray) { return iterable.toArray(); } else { var results = []; for (var i = 0, length = iterable.length; i < length; i++) results.push(iterable[i]); return results; } } if (Prototype.Browser.WebKit) { $A = Array.from = function(iterable) { if (!iterable) return []; if (!(typeof iterable == 'function' && iterable == '[object NodeList]') && iterable.toArray) { return iterable.toArray(); } else { var results = []; for (var i = 0, length = iterable.length; i < length; i++) results.push(iterable[i]); return results; } } } Object.extend(Array.prototype, Enumerable); if (!Array.prototype._reverse) Array.prototype._reverse = Array.prototype.reverse; Object.extend(Array.prototype, { _each: function(iterator) { for (var i = 0, length = this.length; i < length; i++) iterator(this[i]); }, clear: function() { this.length = 0; return this; }, first: function() { return this[0]; }, last: function() { return this[this.length - 1]; }, compact: function() { return this.select(function(value) { return value != null; }); }, flatten: function() { return this.inject([], function(array, value) { return array.concat(value && value.constructor == Array ? value.flatten() : [value]); }); }, without: function() { var values = $A(arguments); return this.select(function(value) { return !values.include(value); }); }, indexOf: function(object) { for (var i = 0, length = this.length; i < length; i++) if (this[i] == object) return i; return -1; }, reverse: function(inline) { return (inline !== false ? this : this.toArray())._reverse(); }, reduce: function() { return this.length > 1 ? this : this[0]; }, uniq: function(sorted) { return this.inject([], function(array, value, index) { if (0 == index || (sorted ? array.last() != value : !array.include(value))) array.push(value); return array; }); }, clone: function() { return [].concat(this); }, size: function() { return this.length; }, inspect: function() { return '[' + this.map(Object.inspect).join(', ') + ']'; }, toJSON: function() { var results = []; this.each(function(object) { var value = Object.toJSON(object); if (value !== undefined) results.push(value); }); return '[' + results.join(', ') + ']'; } }); Array.prototype.toArray = Array.prototype.clone; function $w(string) { string = string.strip(); return string ? string.split(/\s+/) : []; } if (Prototype.Browser.Opera){ Array.prototype.concat = function() { var array = []; for (var i = 0, length = this.length; i < length; i++) array.push(this[i]); for (var i = 0, length = arguments.length; i < length; i++) { if (arguments[i].constructor == Array) { for (var j = 0, arrayLength = arguments[i].length; j < arrayLength; j++) array.push(arguments[i][j]); } else { array.push(arguments[i]); } } return array; } } var Hash = function(object) { if (object instanceof Hash) this.merge(object); else Object.extend(this, object || {}); }; Object.extend(Hash, { toQueryString: function(obj) { var parts = []; parts.add = arguments.callee.addPair; this.prototype._each.call(obj, function(pair) { if (!pair.key) return; var value = pair.value; if (value && typeof value == 'object') { if (value.constructor == Array) value.each(function(value) { parts.add(pair.key, value); }); return; } parts.add(pair.key, value); }); return parts.join('&'); }, toJSON: function(object) { var results = []; this.prototype._each.call(object, function(pair) { var value = Object.toJSON(pair.value); if (value !== undefined) results.push(pair.key.toJSON() + ': ' + value); }); return '{' + results.join(', ') + '}'; } }); Hash.toQueryString.addPair = function(key, value, prefix) { key = encodeURIComponent(key); if (value === undefined) this.push(key); else this.push(key + '=' + (value == null ? '' : encodeURIComponent(value))); } Object.extend(Hash.prototype, Enumerable); Object.extend(Hash.prototype, { _each: function(iterator) { for (var key in this) { var value = this[key]; if (value && value == Hash.prototype[key]) continue; var pair = [key, value]; pair.key = key; pair.value = value; iterator(pair); } }, keys: function() { return this.pluck('key'); }, values: function() { return this.pluck('value'); }, merge: function(hash) { return $H(hash).inject(this, function(mergedHash, pair) { mergedHash[pair.key] = pair.value; return mergedHash; }); }, remove: function() { var result; for(var i = 0, length = arguments.length; i < length; i++) { var value = this[arguments[i]]; if (value !== undefined){ if (result === undefined) result = value; else { if (result.constructor != Array) result = [result]; result.push(value) } } delete this[arguments[i]]; } return result; }, toQueryString: function() { return Hash.toQueryString(this); }, inspect: function() { return '#'; }, toJSON: function() { return Hash.toJSON(this); } }); function $H(object) { if (object instanceof Hash) return object; return new Hash(object); }; // Safari iterates over shadowed properties if (function() { var i = 0, Test = function(value) { this.key = value }; Test.prototype.key = 'foo'; for (var property in new Test('bar')) i++; return i > 1; }()) Hash.prototype._each = function(iterator) { var cache = []; for (var key in this) { var value = this[key]; if ((value && value == Hash.prototype[key]) || cache.include(key)) continue; cache.push(key); var pair = [key, value]; pair.key = key; pair.value = value; iterator(pair); } }; ObjectRange = Class.create(); Object.extend(ObjectRange.prototype, Enumerable); Object.extend(ObjectRange.prototype, { initialize: function(start, end, exclusive) { this.start = start; this.end = end; this.exclusive = exclusive; }, _each: function(iterator) { var value = this.start; while (this.include(value)) { iterator(value); value = value.succ(); } }, include: function(value) { if (value < this.start) return false; if (this.exclusive) return value < this.end; return value <= this.end; } }); var $R = function(start, end, exclusive) { return new ObjectRange(start, end, exclusive); } var Ajax = { getTransport: function() { return Try.these( function() {return new XMLHttpRequest()}, function() {return new ActiveXObject('Msxml2.XMLHTTP')}, function() {return new ActiveXObject('Microsoft.XMLHTTP')} ) || false; }, activeRequestCount: 0 } Ajax.Responders = { responders: [], _each: function(iterator) { this.responders._each(iterator); }, register: function(responder) { if (!this.include(responder)) this.responders.push(responder); }, unregister: function(responder) { this.responders = this.responders.without(responder); }, dispatch: function(callback, request, transport, json) { this.each(function(responder) { if (typeof responder[callback] == 'function') { try { responder[callback].apply(responder, [request, transport, json]); } catch (e) {} } }); } }; Object.extend(Ajax.Responders, Enumerable); Ajax.Responders.register({ onCreate: function() { Ajax.activeRequestCount++; }, onComplete: function() { Ajax.activeRequestCount--; } }); Ajax.Base = function() {}; Ajax.Base.prototype = { setOptions: function(options) { this.options = { method: 'post', asynchronous: true, contentType: 'application/x-www-form-urlencoded', encoding: 'UTF-8', parameters: '' } Object.extend(this.options, options || {}); this.options.method = this.options.method.toLowerCase(); if (typeof this.options.parameters == 'string') this.options.parameters = this.options.parameters.toQueryParams(); } } Ajax.Request = Class.create(); Ajax.Request.Events = ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete']; Ajax.Request.prototype = Object.extend(new Ajax.Base(), { _complete: false, initialize: function(url, options) { this.transport = Ajax.getTransport(); this.setOptions(options); this.request(url); }, request: function(url) { this.url = url; this.method = this.options.method; var params = Object.clone(this.options.parameters); if (!['get', 'post'].include(this.method)) { // simulate other verbs over post params['_method'] = this.method; this.method = 'post'; } this.parameters = params; if (params = Hash.toQueryString(params)) { // when GET, append parameters to URL if (this.method == 'get') this.url += (this.url.include('?') ? '&' : '?') + params; else if (/Konqueror|Safari|KHTML/.test(navigator.userAgent)) params += '&_='; } try { if (this.options.onCreate) this.options.onCreate(this.transport); Ajax.Responders.dispatch('onCreate', this, this.transport); this.transport.open(this.method.toUpperCase(), this.url, this.options.asynchronous); if (this.options.asynchronous) setTimeout(function() { this.respondToReadyState(1) }.bind(this), 10); this.transport.onreadystatechange = this.onStateChange.bind(this); this.setRequestHeaders(); this.body = this.method == 'post' ? (this.options.postBody || params) : null; this.transport.send(this.body); /* Force Firefox to handle ready state 4 for synchronous requests */ if (!this.options.asynchronous && this.transport.overrideMimeType) this.onStateChange(); } catch (e) { this.dispatchException(e); } }, onStateChange: function() { var readyState = this.transport.readyState; if (readyState > 1 && !((readyState == 4) && this._complete)) this.respondToReadyState(this.transport.readyState); }, setRequestHeaders: function() { var headers = { 'X-Requested-With': 'XMLHttpRequest', 'X-Prototype-Version': Prototype.Version, 'Accept': 'text/javascript, text/html, application/xml, text/xml, */*' }; if (this.method == 'post') { headers['Content-type'] = this.options.contentType + (this.options.encoding ? '; charset=' + this.options.encoding : ''); /* Force "Connection: close" for older Mozilla browsers to work * around a bug where XMLHttpRequest sends an incorrect * Content-length header. See Mozilla Bugzilla #246651. */ if (this.transport.overrideMimeType && (navigator.userAgent.match(/Gecko\/(\d{4})/) || [0,2005])[1] < 2005) headers['Connection'] = 'close'; } // user-defined headers if (typeof this.options.requestHeaders == 'object') { var extras = this.options.requestHeaders; if (typeof extras.push == 'function') for (var i = 0, length = extras.length; i < length; i += 2) headers[extras[i]] = extras[i+1]; else $H(extras).each(function(pair) { headers[pair.key] = pair.value }); } for (var name in headers) this.transport.setRequestHeader(name, headers[name]); }, success: function() { return !this.transport.status || (this.transport.status >= 200 && this.transport.status < 300); }, respondToReadyState: function(readyState) { var state = Ajax.Request.Events[readyState]; var transport = this.transport, json = this.evalJSON(); if (state == 'Complete') { try { this._complete = true; (this.options['on' + this.transport.status] || this.options['on' + (this.success() ? 'Success' : 'Failure')] || Prototype.emptyFunction)(transport, json); } catch (e) { this.dispatchException(e); } var contentType = this.getHeader('Content-type'); if (contentType && contentType.strip(). match(/^(text|application)\/(x-)?(java|ecma)script(;.*)?$/i)) this.evalResponse(); } try { (this.options['on' + state] || Prototype.emptyFunction)(transport, json); Ajax.Responders.dispatch('on' + state, this, transport, json); } catch (e) { this.dispatchException(e); } if (state == 'Complete') { // avoid memory leak in MSIE: clean up this.transport.onreadystatechange = Prototype.emptyFunction; } }, getHeader: function(name) { try { return this.transport.getResponseHeader(name); } catch (e) { return null } }, evalJSON: function() { try { var json = this.getHeader('X-JSON'); return json ? json.evalJSON() : null; } catch (e) { return null } }, evalResponse: function() { try { return eval((this.transport.responseText || '').unfilterJSON()); } catch (e) { this.dispatchException(e); } }, dispatchException: function(exception) { (this.options.onException || Prototype.emptyFunction)(this, exception); Ajax.Responders.dispatch('onException', this, exception); } }); Ajax.Updater = Class.create(); Object.extend(Object.extend(Ajax.Updater.prototype, Ajax.Request.prototype), { initialize: function(container, url, options) { this.container = { success: (container.success || container), failure: (container.failure || (container.success ? null : container)) } this.transport = Ajax.getTransport(); this.setOptions(options); var onComplete = this.options.onComplete || Prototype.emptyFunction; this.options.onComplete = (function(transport, param) { this.updateContent(); onComplete(transport, param); }).bind(this); this.request(url); }, updateContent: function() { var receiver = this.container[this.success() ? 'success' : 'failure']; var response = this.transport.responseText; if (!this.options.evalScripts) response = response.stripScripts(); if (receiver = $(receiver)) { if (this.options.insertion) new this.options.insertion(receiver, response); else receiver.update(response); } if (this.success()) { if (this.onComplete) setTimeout(this.onComplete.bind(this), 10); } } }); Ajax.PeriodicalUpdater = Class.create(); Ajax.PeriodicalUpdater.prototype = Object.extend(new Ajax.Base(), { initialize: function(container, url, options) { this.setOptions(options); this.onComplete = this.options.onComplete; this.frequency = (this.options.frequency || 2); this.decay = (this.options.decay || 1); this.updater = {}; this.container = container; this.url = url; this.start(); }, start: function() { this.options.onComplete = this.updateComplete.bind(this); this.onTimerEvent(); }, stop: function() { this.updater.options.onComplete = undefined; clearTimeout(this.timer); (this.onComplete || Prototype.emptyFunction).apply(this, arguments); }, updateComplete: function(request) { if (this.options.decay) { this.decay = (request.responseText == this.lastText ? this.decay * this.options.decay : 1); this.lastText = request.responseText; } this.timer = setTimeout(this.onTimerEvent.bind(this), this.decay * this.frequency * 1000); }, onTimerEvent: function() { this.updater = new Ajax.Updater(this.container, this.url, this.options); } }); function $(element) { if (arguments.length > 1) { for (var i = 0, elements = [], length = arguments.length; i < length; i++) elements.push($(arguments[i])); return elements; } if (typeof element == 'string') element = document.getElementById(element); return Element.extend(element); } if (Prototype.BrowserFeatures.XPath) { document._getElementsByXPath = function(expression, parentElement) { var results = []; var query = document.evaluate(expression, $(parentElement) || document, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null); for (var i = 0, length = query.snapshotLength; i < length; i++) results.push(query.snapshotItem(i)); return results; }; document.getElementsByClassName = function(className, parentElement) { var q = ".//*[contains(concat(' ', @class, ' '), ' " + className + " ')]"; return document._getElementsByXPath(q, parentElement); } } else document.getElementsByClassName = function(className, parentElement) { var children = ($(parentElement) || document.body).getElementsByTagName('*'); var elements = [], child; for (var i = 0, length = children.length; i < length; i++) { child = children[i]; if (Element.hasClassName(child, className)) elements.push(Element.extend(child)); } return elements; }; /*--------------------------------------------------------------------------*/ if (!window.Element) var Element = {}; Element.extend = function(element) { var F = Prototype.BrowserFeatures; if (!element || !element.tagName || element.nodeType == 3 || element._extended || F.SpecificElementExtensions || element == window) return element; var methods = {}, tagName = element.tagName, cache = Element.extend.cache, T = Element.Methods.ByTag; // extend methods for all tags (Safari doesn't need this) if (!F.ElementExtensions) { Object.extend(methods, Element.Methods), Object.extend(methods, Element.Methods.Simulated); } // extend methods for specific tags if (T[tagName]) Object.extend(methods, T[tagName]); for (var property in methods) { var value = methods[property]; if (typeof value == 'function' && !(property in element)) element[property] = cache.findOrStore(value); } element._extended = Prototype.emptyFunction; return element; }; Element.extend.cache = { findOrStore: function(value) { return this[value] = this[value] || function() { return value.apply(null, [this].concat($A(arguments))); } } }; Element.Methods = { visible: function(element) { return $(element).style.display != 'none'; }, toggle: function(element) { element = $(element); Element[Element.visible(element) ? 'hide' : 'show'](element); return element; }, hide: function(element) { $(element).style.display = 'none'; return element; }, show: function(element) { $(element).style.display = ''; return element; }, remove: function(element) { element = $(element); element.parentNode.removeChild(element); return element; }, update: function(element, html) { html = typeof html == 'undefined' ? '' : html.toString(); $(element).innerHTML = html.stripScripts(); setTimeout(function() {html.evalScripts()}, 10); return element; }, replace: function(element, html) { element = $(element); html = typeof html == 'undefined' ? '' : html.toString(); if (element.outerHTML) { element.outerHTML = html.stripScripts(); } else { var range = element.ownerDocument.createRange(); range.selectNodeContents(element); element.parentNode.replaceChild( range.createContextualFragment(html.stripScripts()), element); } setTimeout(function() {html.evalScripts()}, 10); return element; }, inspect: function(element) { element = $(element); var result = '<' + element.tagName.toLowerCase(); $H({'id': 'id', 'className': 'class'}).each(function(pair) { var property = pair.first(), attribute = pair.last(); var value = (element[property] || '').toString(); if (value) result += ' ' + attribute + '=' + value.inspect(true); }); return result + '>'; }, recursivelyCollect: function(element, property) { element = $(element); var elements = []; while (element = element[property]) if (element.nodeType == 1) elements.push(Element.extend(element)); return elements; }, ancestors: function(element) { return $(element).recursivelyCollect('parentNode'); }, descendants: function(element) { return $A($(element).getElementsByTagName('*')).each(Element.extend); }, firstDescendant: function(element) { element = $(element).firstChild; while (element && element.nodeType != 1) element = element.nextSibling; return $(element); }, immediateDescendants: function(element) { if (!(element = $(element).firstChild)) return []; while (element && element.nodeType != 1) element = element.nextSibling; if (element) return [element].concat($(element).nextSiblings()); return []; }, previousSiblings: function(element) { return $(element).recursivelyCollect('previousSibling'); }, nextSiblings: function(element) { return $(element).recursivelyCollect('nextSibling'); }, siblings: function(element) { element = $(element); return element.previousSiblings().reverse().concat(element.nextSiblings()); }, match: function(element, selector) { if (typeof selector == 'string') selector = new Selector(selector); return selector.match($(element)); }, up: function(element, expression, index) { element = $(element); if (arguments.length == 1) return $(element.parentNode); var ancestors = element.ancestors(); return expression ? Selector.findElement(ancestors, expression, index) : ancestors[index || 0]; }, down: function(element, expression, index) { element = $(element); if (arguments.length == 1) return element.firstDescendant(); var descendants = element.descendants(); return expression ? Selector.findElement(descendants, expression, index) : descendants[index || 0]; }, previous: function(element, expression, index) { element = $(element); if (arguments.length == 1) return $(Selector.handlers.previousElementSibling(element)); var previousSiblings = element.previousSiblings(); return expression ? Selector.findElement(previousSiblings, expression, index) : previousSiblings[index || 0]; }, next: function(element, expression, index) { element = $(element); if (arguments.length == 1) return $(Selector.handlers.nextElementSibling(element)); var nextSiblings = element.nextSiblings(); return expression ? Selector.findElement(nextSiblings, expression, index) : nextSiblings[index || 0]; }, getElementsBySelector: function() { var args = $A(arguments), element = $(args.shift()); return Selector.findChildElements(element, args); }, getElementsByClassName: function(element, className) { return document.getElementsByClassName(className, element); }, readAttribute: function(element, name) { element = $(element); if (Prototype.Browser.IE) { if (!element.attributes) return null; var t = Element._attributeTranslations; if (t.values[name]) return t.values[name](element, name); if (t.names[name]) name = t.names[name]; var attribute = element.attributes[name]; return attribute ? attribute.nodeValue : null; } return element.getAttribute(name); }, getHeight: function(element) { return $(element).getDimensions().height; }, getWidth: function(element) { return $(element).getDimensions().width; }, classNames: function(element) { return new Element.ClassNames(element); }, hasClassName: function(element, className) { if (!(element = $(element))) return; var elementClassName = element.className; if (elementClassName.length == 0) return false; if (elementClassName == className || elementClassName.match(new RegExp("(^|\\s)" + className + "(\\s|$)"))) return true; return false; }, addClassName: function(element, className) { if (!(element = $(element))) return; Element.classNames(element).add(className); return element; }, removeClassName: function(element, className) { if (!(element = $(element))) return; Element.classNames(element).remove(className); return element; }, toggleClassName: function(element, className) { if (!(element = $(element))) return; Element.classNames(element)[element.hasClassName(className) ? 'remove' : 'add'](className); return element; }, observe: function() { Event.observe.apply(Event, arguments); return $A(arguments).first(); }, stopObserving: function() { Event.stopObserving.apply(Event, arguments); return $A(arguments).first(); }, // removes whitespace-only text node children cleanWhitespace: function(element) { element = $(element); var node = element.firstChild; while (node) { var nextNode = node.nextSibling; if (node.nodeType == 3 && !/\S/.test(node.nodeValue)) element.removeChild(node); node = nextNode; } return element; }, empty: function(element) { return $(element).innerHTML.blank(); }, descendantOf: function(element, ancestor) { element = $(element), ancestor = $(ancestor); while (element = element.parentNode) if (element == ancestor) return true; return false; }, scrollTo: function(element) { element = $(element); var pos = Position.cumulativeOffset(element); window.scrollTo(pos[0], pos[1]); return element; }, getStyle: function(element, style) { element = $(element); style = style == 'float' ? 'cssFloat' : style.camelize(); var value = element.style[style]; if (!value) { var css = document.defaultView.getComputedStyle(element, null); value = css ? css[style] : null; } if (style == 'opacity') return value ? parseFloat(value) : 1.0; return value == 'auto' ? null : value; }, getOpacity: function(element) { return $(element).getStyle('opacity'); }, setStyle: function(element, styles, camelized) { element = $(element); var elementStyle = element.style; for (var property in styles) if (property == 'opacity') element.setOpacity(styles[property]) else elementStyle[(property == 'float' || property == 'cssFloat') ? (elementStyle.styleFloat === undefined ? 'cssFloat' : 'styleFloat') : (camelized ? property : property.camelize())] = styles[property]; return element; }, setOpacity: function(element, value) { element = $(element); element.style.opacity = (value == 1 || value === '') ? '' : (value < 0.00001) ? 0 : value; return element; }, getDimensions: function(element) { element = $(element); var display = $(element).getStyle('display'); if (display != 'none' && display != null) // Safari bug return {width: element.offsetWidth, height: element.offsetHeight}; // All *Width and *Height properties give 0 on elements with display none, // so enable the element temporarily var els = element.style; var originalVisibility = els.visibility; var originalPosition = els.position; var originalDisplay = els.display; els.visibility = 'hidden'; els.position = 'absolute'; els.display = 'block'; var originalWidth = element.clientWidth; var originalHeight = element.clientHeight; els.display = originalDisplay; els.position = originalPosition; els.visibility = originalVisibility; return {width: originalWidth, height: originalHeight}; }, makePositioned: function(element) { element = $(element); var pos = Element.getStyle(element, 'position'); if (pos == 'static' || !pos) { element._madePositioned = true; element.style.position = 'relative'; // Opera returns the offset relative to the positioning context, when an // element is position relative but top and left have not been defined if (window.opera) { element.style.top = 0; element.style.left = 0; } } return element; }, undoPositioned: function(element) { element = $(element); if (element._madePositioned) { element._madePositioned = undefined; element.style.position = element.style.top = element.style.left = element.style.bottom = element.style.right = ''; } return element; }, makeClipping: function(element) { element = $(element); if (element._overflow) return element; element._overflow = element.style.overflow || 'auto'; if ((Element.getStyle(element, 'overflow') || 'visible') != 'hidden') element.style.overflow = 'hidden'; return element; }, undoClipping: function(element) { element = $(element); if (!element._overflow) return element; element.style.overflow = element._overflow == 'auto' ? '' : element._overflow; element._overflow = null; return element; } }; Object.extend(Element.Methods, { childOf: Element.Methods.descendantOf, childElements: Element.Methods.immediateDescendants }); if (Prototype.Browser.Opera) { Element.Methods._getStyle = Element.Methods.getStyle; Element.Methods.getStyle = function(element, style) { switch(style) { case 'left': case 'top': case 'right': case 'bottom': if (Element._getStyle(element, 'position') == 'static') return null; default: return Element._getStyle(element, style); } }; } else if (Prototype.Browser.IE) { Element.Methods.getStyle = function(element, style) { element = $(element); style = (style == 'float' || style == 'cssFloat') ? 'styleFloat' : style.camelize(); var value = element.style[style]; if (!value && element.currentStyle) value = element.currentStyle[style]; if (style == 'opacity') { if (value = (element.getStyle('filter') || '').match(/alpha\(opacity=(.*)\)/)) if (value[1]) return parseFloat(value[1]) / 100; return 1.0; } if (value == 'auto') { if ((style == 'width' || style == 'height') && (element.getStyle('display') != 'none')) return element['offset'+style.capitalize()] + 'px'; return null; } return value; }; Element.Methods.setOpacity = function(element, value) { element = $(element); var filter = element.getStyle('filter'), style = element.style; if (value == 1 || value === '') { style.filter = filter.replace(/alpha\([^\)]*\)/gi,''); return element; } else if (value < 0.00001) value = 0; style.filter = filter.replace(/alpha\([^\)]*\)/gi, '') + 'alpha(opacity=' + (value * 100) + ')'; return element; }; // IE is missing .innerHTML support for TABLE-related elements Element.Methods.update = function(element, html) { element = $(element); html = typeof html == 'undefined' ? '' : html.toString(); var tagName = element.tagName.toUpperCase(); if (['THEAD','TBODY','TR','TD'].include(tagName)) { var div = document.createElement('div'); switch (tagName) { case 'THEAD': case 'TBODY': div.innerHTML = '
' + html.stripScripts() + '
'; depth = 2; break; case 'TR': div.innerHTML = '
' + html.stripScripts() + '
'; depth = 3; break; case 'TD': div.innerHTML = '
' + html.stripScripts() + '
'; depth = 4; } $A(element.childNodes).each(function(node) { element.removeChild(node) }); depth.times(function() { div = div.firstChild }); $A(div.childNodes).each(function(node) { element.appendChild(node) }); } else { element.innerHTML = html.stripScripts(); } setTimeout(function() { html.evalScripts() }, 10); return element; } } else if (Prototype.Browser.Gecko) { Element.Methods.setOpacity = function(element, value) { element = $(element); element.style.opacity = (value == 1) ? 0.999999 : (value === '') ? '' : (value < 0.00001) ? 0 : value; return element; }; } Element._attributeTranslations = { names: { colspan: "colSpan", rowspan: "rowSpan", valign: "vAlign", datetime: "dateTime", accesskey: "accessKey", tabindex: "tabIndex", enctype: "encType", maxlength: "maxLength", readonly: "readOnly", longdesc: "longDesc" }, values: { _getAttr: function(element, attribute) { return element.getAttribute(attribute, 2); }, _flag: function(element, attribute) { return $(element).hasAttribute(attribute) ? attribute : null; }, style: function(element) { return element.style.cssText.toLowerCase(); }, title: function(element) { var node = element.getAttributeNode('title'); return node.specified ? node.nodeValue : null; } } }; (function() { Object.extend(this, { href: this._getAttr, src: this._getAttr, type: this._getAttr, disabled: this._flag, checked: this._flag, readonly: this._flag, multiple: this._flag }); }).call(Element._attributeTranslations.values); Element.Methods.Simulated = { hasAttribute: function(element, attribute) { var t = Element._attributeTranslations, node; attribute = t.names[attribute] || attribute; node = $(element).getAttributeNode(attribute); return node && node.specified; } }; Element.Methods.ByTag = {}; Object.extend(Element, Element.Methods); if (!Prototype.BrowserFeatures.ElementExtensions && document.createElement('div').__proto__) { window.HTMLElement = {}; window.HTMLElement.prototype = document.createElement('div').__proto__; Prototype.BrowserFeatures.ElementExtensions = true; } Element.hasAttribute = function(element, attribute) { if (element.hasAttribute) return element.hasAttribute(attribute); return Element.Methods.Simulated.hasAttribute(element, attribute); }; Element.addMethods = function(methods) { var F = Prototype.BrowserFeatures, T = Element.Methods.ByTag; if (!methods) { Object.extend(Form, Form.Methods); Object.extend(Form.Element, Form.Element.Methods); Object.extend(Element.Methods.ByTag, { "FORM": Object.clone(Form.Methods), "INPUT": Object.clone(Form.Element.Methods), "SELECT": Object.clone(Form.Element.Methods), "TEXTAREA": Object.clone(Form.Element.Methods) }); } if (arguments.length == 2) { var tagName = methods; methods = arguments[1]; } if (!tagName) Object.extend(Element.Methods, methods || {}); else { if (tagName.constructor == Array) tagName.each(extend); else extend(tagName); } function extend(tagName) { tagName = tagName.toUpperCase(); if (!Element.Methods.ByTag[tagName]) Element.Methods.ByTag[tagName] = {}; Object.extend(Element.Methods.ByTag[tagName], methods); } function copy(methods, destination, onlyIfAbsent) { onlyIfAbsent = onlyIfAbsent || false; var cache = Element.extend.cache; for (var property in methods) { var value = methods[property]; if (!onlyIfAbsent || !(property in destination)) destination[property] = cache.findOrStore(value); } } function findDOMClass(tagName) { var klass; var trans = { "OPTGROUP": "OptGroup", "TEXTAREA": "TextArea", "P": "Paragraph", "FIELDSET": "FieldSet", "UL": "UList", "OL": "OList", "DL": "DList", "DIR": "Directory", "H1": "Heading", "H2": "Heading", "H3": "Heading", "H4": "Heading", "H5": "Heading", "H6": "Heading", "Q": "Quote", "INS": "Mod", "DEL": "Mod", "A": "Anchor", "IMG": "Image", "CAPTION": "TableCaption", "COL": "TableCol", "COLGROUP": "TableCol", "THEAD": "TableSection", "TFOOT": "TableSection", "TBODY": "TableSection", "TR": "TableRow", "TH": "TableCell", "TD": "TableCell", "FRAMESET": "FrameSet", "IFRAME": "IFrame" }; if (trans[tagName]) klass = 'HTML' + trans[tagName] + 'Element'; if (window[klass]) return window[klass]; klass = 'HTML' + tagName + 'Element'; if (window[klass]) return window[klass]; klass = 'HTML' + tagName.capitalize() + 'Element'; if (window[klass]) return window[klass]; window[klass] = {}; window[klass].prototype = document.createElement(tagName).__proto__; return window[klass]; } if (F.ElementExtensions) { copy(Element.Methods, HTMLElement.prototype); copy(Element.Methods.Simulated, HTMLElement.prototype, true); } if (F.SpecificElementExtensions) { for (var tag in Element.Methods.ByTag) { var klass = findDOMClass(tag); if (typeof klass == "undefined") continue; copy(T[tag], klass.prototype); } } Object.extend(Element, Element.Methods); delete Element.ByTag; }; var Toggle = { display: Element.toggle }; /*--------------------------------------------------------------------------*/ Abstract.Insertion = function(adjacency) { this.adjacency = adjacency; } Abstract.Insertion.prototype = { initialize: function(element, content) { this.element = $(element); this.content = content.stripScripts(); if (this.adjacency && this.element.insertAdjacentHTML) { try { this.element.insertAdjacentHTML(this.adjacency, this.content); } catch (e) { var tagName = this.element.tagName.toUpperCase(); if (['TBODY', 'TR'].include(tagName)) { this.insertContent(this.contentFromAnonymousTable()); } else { throw e; } } } else { this.range = this.element.ownerDocument.createRange(); if (this.initializeRange) this.initializeRange(); this.insertContent([this.range.createContextualFragment(this.content)]); } setTimeout(function() {content.evalScripts()}, 10); }, contentFromAnonymousTable: function() { var div = document.createElement('div'); div.innerHTML = '
' + this.content + '
'; return $A(div.childNodes[0].childNodes[0].childNodes); } } var Insertion = new Object(); Insertion.Before = Class.create(); Insertion.Before.prototype = Object.extend(new Abstract.Insertion('beforeBegin'), { initializeRange: function() { this.range.setStartBefore(this.element); }, insertContent: function(fragments) { fragments.each((function(fragment) { this.element.parentNode.insertBefore(fragment, this.element); }).bind(this)); } }); Insertion.Top = Class.create(); Insertion.Top.prototype = Object.extend(new Abstract.Insertion('afterBegin'), { initializeRange: function() { this.range.selectNodeContents(this.element); this.range.collapse(true); }, insertContent: function(fragments) { fragments.reverse(false).each((function(fragment) { this.element.insertBefore(fragment, this.element.firstChild); }).bind(this)); } }); Insertion.Bottom = Class.create(); Insertion.Bottom.prototype = Object.extend(new Abstract.Insertion('beforeEnd'), { initializeRange: function() { this.range.selectNodeContents(this.element); this.range.collapse(this.element); }, insertContent: function(fragments) { fragments.each((function(fragment) { this.element.appendChild(fragment); }).bind(this)); } }); Insertion.After = Class.create(); Insertion.After.prototype = Object.extend(new Abstract.Insertion('afterEnd'), { initializeRange: function() { this.range.setStartAfter(this.element); }, insertContent: function(fragments) { fragments.each((function(fragment) { this.element.parentNode.insertBefore(fragment, this.element.nextSibling); }).bind(this)); } }); /*--------------------------------------------------------------------------*/ Element.ClassNames = Class.create(); Element.ClassNames.prototype = { initialize: function(element) { this.element = $(element); }, _each: function(iterator) { this.element.className.split(/\s+/).select(function(name) { return name.length > 0; })._each(iterator); }, set: function(className) { this.element.className = className; }, add: function(classNameToAdd) { if (this.include(classNameToAdd)) return; this.set($A(this).concat(classNameToAdd).join(' ')); }, remove: function(classNameToRemove) { if (!this.include(classNameToRemove)) return; this.set($A(this).without(classNameToRemove).join(' ')); }, toString: function() { return $A(this).join(' '); } }; Object.extend(Element.ClassNames.prototype, Enumerable); /* Portions of the Selector class are derived from Jack Slocum’s DomQuery, * part of YUI-Ext version 0.40, distributed under the terms of an MIT-style * license. Please see http://www.yui-ext.com/ for more information. */ var Selector = Class.create(); Selector.prototype = { initialize: function(expression) { this.expression = expression.strip(); this.compileMatcher(); }, compileMatcher: function() { // Selectors with namespaced attributes can't use the XPath version if (Prototype.BrowserFeatures.XPath && !(/\[[\w-]*?:/).test(this.expression)) return this.compileXPathMatcher(); var e = this.expression, ps = Selector.patterns, h = Selector.handlers, c = Selector.criteria, le, p, m; if (Selector._cache[e]) { this.matcher = Selector._cache[e]; return; } this.matcher = ["this.matcher = function(root) {", "var r = root, h = Selector.handlers, c = false, n;"]; while (e && le != e && (/\S/).test(e)) { le = e; for (var i in ps) { p = ps[i]; if (m = e.match(p)) { this.matcher.push(typeof c[i] == 'function' ? c[i](m) : new Template(c[i]).evaluate(m)); e = e.replace(m[0], ''); break; } } } this.matcher.push("return h.unique(n);\n}"); eval(this.matcher.join('\n')); Selector._cache[this.expression] = this.matcher; }, compileXPathMatcher: function() { var e = this.expression, ps = Selector.patterns, x = Selector.xpath, le, m; if (Selector._cache[e]) { this.xpath = Selector._cache[e]; return; } this.matcher = ['.//*']; while (e && le != e && (/\S/).test(e)) { le = e; for (var i in ps) { if (m = e.match(ps[i])) { this.matcher.push(typeof x[i] == 'function' ? x[i](m) : new Template(x[i]).evaluate(m)); e = e.replace(m[0], ''); break; } } } this.xpath = this.matcher.join(''); Selector._cache[this.expression] = this.xpath; }, findElements: function(root) { root = root || document; if (this.xpath) return document._getElementsByXPath(this.xpath, root); return this.matcher(root); }, match: function(element) { return this.findElements(document).include(element); }, toString: function() { return this.expression; }, inspect: function() { return "#"; } }; Object.extend(Selector, { _cache: {}, xpath: { descendant: "//*", child: "/*", adjacent: "/following-sibling::*[1]", laterSibling: '/following-sibling::*', tagName: function(m) { if (m[1] == '*') return ''; return "[local-name()='" + m[1].toLowerCase() + "' or local-name()='" + m[1].toUpperCase() + "']"; }, className: "[contains(concat(' ', @class, ' '), ' #{1} ')]", id: "[@id='#{1}']", attrPresence: "[@#{1}]", attr: function(m) { m[3] = m[5] || m[6]; return new Template(Selector.xpath.operators[m[2]]).evaluate(m); }, pseudo: function(m) { var h = Selector.xpath.pseudos[m[1]]; if (!h) return ''; if (typeof h === 'function') return h(m); return new Template(Selector.xpath.pseudos[m[1]]).evaluate(m); }, operators: { '=': "[@#{1}='#{3}']", '!=': "[@#{1}!='#{3}']", '^=': "[starts-with(@#{1}, '#{3}')]", '$=': "[substring(@#{1}, (string-length(@#{1}) - string-length('#{3}') + 1))='#{3}']", '*=': "[contains(@#{1}, '#{3}')]", '~=': "[contains(concat(' ', @#{1}, ' '), ' #{3} ')]", '|=': "[contains(concat('-', @#{1}, '-'), '-#{3}-')]" }, pseudos: { 'first-child': '[not(preceding-sibling::*)]', 'last-child': '[not(following-sibling::*)]', 'only-child': '[not(preceding-sibling::* or following-sibling::*)]', 'empty': "[count(*) = 0 and (count(text()) = 0 or translate(text(), ' \t\r\n', '') = '')]", 'checked': "[@checked]", 'disabled': "[@disabled]", 'enabled': "[not(@disabled)]", 'not': function(m) { var e = m[6], p = Selector.patterns, x = Selector.xpath, le, m, v; var exclusion = []; while (e && le != e && (/\S/).test(e)) { le = e; for (var i in p) { if (m = e.match(p[i])) { v = typeof x[i] == 'function' ? x[i](m) : new Template(x[i]).evaluate(m); exclusion.push("(" + v.substring(1, v.length - 1) + ")"); e = e.replace(m[0], ''); break; } } } return "[not(" + exclusion.join(" and ") + ")]"; }, 'nth-child': function(m) { return Selector.xpath.pseudos.nth("(count(./preceding-sibling::*) + 1) ", m); }, 'nth-last-child': function(m) { return Selector.xpath.pseudos.nth("(count(./following-sibling::*) + 1) ", m); }, 'nth-of-type': function(m) { return Selector.xpath.pseudos.nth("position() ", m); }, 'nth-last-of-type': function(m) { return Selector.xpath.pseudos.nth("(last() + 1 - position()) ", m); }, 'first-of-type': function(m) { m[6] = "1"; return Selector.xpath.pseudos['nth-of-type'](m); }, 'last-of-type': function(m) { m[6] = "1"; return Selector.xpath.pseudos['nth-last-of-type'](m); }, 'only-of-type': function(m) { var p = Selector.xpath.pseudos; return p['first-of-type'](m) + p['last-of-type'](m); }, nth: function(fragment, m) { var mm, formula = m[6], predicate; if (formula == 'even') formula = '2n+0'; if (formula == 'odd') formula = '2n+1'; if (mm = formula.match(/^(\d+)$/)) // digit only return '[' + fragment + "= " + mm[1] + ']'; if (mm = formula.match(/^(-?\d*)?n(([+-])(\d+))?/)) { // an+b if (mm[1] == "-") mm[1] = -1; var a = mm[1] ? Number(mm[1]) : 1; var b = mm[2] ? Number(mm[2]) : 0; predicate = "[((#{fragment} - #{b}) mod #{a} = 0) and " + "((#{fragment} - #{b}) div #{a} >= 0)]"; return new Template(predicate).evaluate({ fragment: fragment, a: a, b: b }); } } } }, criteria: { tagName: 'n = h.tagName(n, r, "#{1}", c); c = false;', className: 'n = h.className(n, r, "#{1}", c); c = false;', id: 'n = h.id(n, r, "#{1}", c); c = false;', attrPresence: 'n = h.attrPresence(n, r, "#{1}"); c = false;', attr: function(m) { m[3] = (m[5] || m[6]); return new Template('n = h.attr(n, r, "#{1}", "#{3}", "#{2}"); c = false;').evaluate(m); }, pseudo: function(m) { if (m[6]) m[6] = m[6].replace(/"/g, '\\"'); return new Template('n = h.pseudo(n, "#{1}", "#{6}", r, c); c = false;').evaluate(m); }, descendant: 'c = "descendant";', child: 'c = "child";', adjacent: 'c = "adjacent";', laterSibling: 'c = "laterSibling";' }, patterns: { // combinators must be listed first // (and descendant needs to be last combinator) laterSibling: /^\s*~\s*/, child: /^\s*>\s*/, adjacent: /^\s*\+\s*/, descendant: /^\s/, // selectors follow tagName: /^\s*(\*|[\w\-]+)(\b|$)?/, id: /^#([\w\-\*]+)(\b|$)/, className: /^\.([\w\-\*]+)(\b|$)/, pseudo: /^:((first|last|nth|nth-last|only)(-child|-of-type)|empty|checked|(en|dis)abled|not)(\((.*?)\))?(\b|$|\s|(?=:))/, attrPresence: /^\[([\w]+)\]/, attr: /\[((?:[\w-]*:)?[\w-]+)\s*(?:([!^$*~|]?=)\s*((['"])([^\]]*?)\4|([^'"][^\]]*?)))?\]/ }, handlers: { // UTILITY FUNCTIONS // joins two collections concat: function(a, b) { for (var i = 0, node; node = b[i]; i++) a.push(node); return a; }, // marks an array of nodes for counting mark: function(nodes) { for (var i = 0, node; node = nodes[i]; i++) node._counted = true; return nodes; }, unmark: function(nodes) { for (var i = 0, node; node = nodes[i]; i++) node._counted = undefined; return nodes; }, // mark each child node with its position (for nth calls) // "ofType" flag indicates whether we're indexing for nth-of-type // rather than nth-child index: function(parentNode, reverse, ofType) { parentNode._counted = true; if (reverse) { for (var nodes = parentNode.childNodes, i = nodes.length - 1, j = 1; i >= 0; i--) { node = nodes[i]; if (node.nodeType == 1 && (!ofType || node._counted)) node.nodeIndex = j++; } } else { for (var i = 0, j = 1, nodes = parentNode.childNodes; node = nodes[i]; i++) if (node.nodeType == 1 && (!ofType || node._counted)) node.nodeIndex = j++; } }, // filters out duplicates and extends all nodes unique: function(nodes) { if (nodes.length == 0) return nodes; var results = [], n; for (var i = 0, l = nodes.length; i < l; i++) if (!(n = nodes[i])._counted) { n._counted = true; results.push(Element.extend(n)); } return Selector.handlers.unmark(results); }, // COMBINATOR FUNCTIONS descendant: function(nodes) { var h = Selector.handlers; for (var i = 0, results = [], node; node = nodes[i]; i++) h.concat(results, node.getElementsByTagName('*')); return results; }, child: function(nodes) { var h = Selector.handlers; for (var i = 0, results = [], node; node = nodes[i]; i++) { for (var j = 0, children = [], child; child = node.childNodes[j]; j++) if (child.nodeType == 1 && child.tagName != '!') results.push(child); } return results; }, adjacent: function(nodes) { for (var i = 0, results = [], node; node = nodes[i]; i++) { var next = this.nextElementSibling(node); if (next) results.push(next); } return results; }, laterSibling: function(nodes) { var h = Selector.handlers; for (var i = 0, results = [], node; node = nodes[i]; i++) h.concat(results, Element.nextSiblings(node)); return results; }, nextElementSibling: function(node) { while (node = node.nextSibling) if (node.nodeType == 1) return node; return null; }, previousElementSibling: function(node) { while (node = node.previousSibling) if (node.nodeType == 1) return node; return null; }, // TOKEN FUNCTIONS tagName: function(nodes, root, tagName, combinator) { tagName = tagName.toUpperCase(); var results = [], h = Selector.handlers; if (nodes) { if (combinator) { // fastlane for ordinary descendant combinators if (combinator == "descendant") { for (var i = 0, node; node = nodes[i]; i++) h.concat(results, node.getElementsByTagName(tagName)); return results; } else nodes = this[combinator](nodes); if (tagName == "*") return nodes; } for (var i = 0, node; node = nodes[i]; i++) if (node.tagName.toUpperCase() == tagName) results.push(node); return results; } else return root.getElementsByTagName(tagName); }, id: function(nodes, root, id, combinator) { var targetNode = $(id), h = Selector.handlers; if (!nodes && root == document) return targetNode ? [targetNode] : []; if (nodes) { if (combinator) { if (combinator == 'child') { for (var i = 0, node; node = nodes[i]; i++) if (targetNode.parentNode == node) return [targetNode]; } else if (combinator == 'descendant') { for (var i = 0, node; node = nodes[i]; i++) if (Element.descendantOf(targetNode, node)) return [targetNode]; } else if (combinator == 'adjacent') { for (var i = 0, node; node = nodes[i]; i++) if (Selector.handlers.previousElementSibling(targetNode) == node) return [targetNode]; } else nodes = h[combinator](nodes); } for (var i = 0, node; node = nodes[i]; i++) if (node == targetNode) return [targetNode]; return []; } return (targetNode && Element.descendantOf(targetNode, root)) ? [targetNode] : []; }, className: function(nodes, root, className, combinator) { if (nodes && combinator) nodes = this[combinator](nodes); return Selector.handlers.byClassName(nodes, root, className); }, byClassName: function(nodes, root, className) { if (!nodes) nodes = Selector.handlers.descendant([root]); var needle = ' ' + className + ' '; for (var i = 0, results = [], node, nodeClassName; node = nodes[i]; i++) { nodeClassName = node.className; if (nodeClassName.length == 0) continue; if (nodeClassName == className || (' ' + nodeClassName + ' ').include(needle)) results.push(node); } return results; }, attrPresence: function(nodes, root, attr) { var results = []; for (var i = 0, node; node = nodes[i]; i++) if (Element.hasAttribute(node, attr)) results.push(node); return results; }, attr: function(nodes, root, attr, value, operator) { if (!nodes) nodes = root.getElementsByTagName("*"); var handler = Selector.operators[operator], results = []; for (var i = 0, node; node = nodes[i]; i++) { var nodeValue = Element.readAttribute(node, attr); if (nodeValue === null) continue; if (handler(nodeValue, value)) results.push(node); } return results; }, pseudo: function(nodes, name, value, root, combinator) { if (nodes && combinator) nodes = this[combinator](nodes); if (!nodes) nodes = root.getElementsByTagName("*"); return Selector.pseudos[name](nodes, value, root); } }, pseudos: { 'first-child': function(nodes, value, root) { for (var i = 0, results = [], node; node = nodes[i]; i++) { if (Selector.handlers.previousElementSibling(node)) continue; results.push(node); } return results; }, 'last-child': function(nodes, value, root) { for (var i = 0, results = [], node; node = nodes[i]; i++) { if (Selector.handlers.nextElementSibling(node)) continue; results.push(node); } return results; }, 'only-child': function(nodes, value, root) { var h = Selector.handlers; for (var i = 0, results = [], node; node = nodes[i]; i++) if (!h.previousElementSibling(node) && !h.nextElementSibling(node)) results.push(node); return results; }, 'nth-child': function(nodes, formula, root) { return Selector.pseudos.nth(nodes, formula, root); }, 'nth-last-child': function(nodes, formula, root) { return Selector.pseudos.nth(nodes, formula, root, true); }, 'nth-of-type': function(nodes, formula, root) { return Selector.pseudos.nth(nodes, formula, root, false, true); }, 'nth-last-of-type': function(nodes, formula, root) { return Selector.pseudos.nth(nodes, formula, root, true, true); }, 'first-of-type': function(nodes, formula, root) { return Selector.pseudos.nth(nodes, "1", root, false, true); }, 'last-of-type': function(nodes, formula, root) { return Selector.pseudos.nth(nodes, "1", root, true, true); }, 'only-of-type': function(nodes, formula, root) { var p = Selector.pseudos; return p['last-of-type'](p['first-of-type'](nodes, formula, root), formula, root); }, // handles the an+b logic getIndices: function(a, b, total) { if (a == 0) return b > 0 ? [b] : []; return $R(1, total).inject([], function(memo, i) { if (0 == (i - b) % a && (i - b) / a >= 0) memo.push(i); return memo; }); }, // handles nth(-last)-child, nth(-last)-of-type, and (first|last)-of-type nth: function(nodes, formula, root, reverse, ofType) { if (nodes.length == 0) return []; if (formula == 'even') formula = '2n+0'; if (formula == 'odd') formula = '2n+1'; var h = Selector.handlers, results = [], indexed = [], m; h.mark(nodes); for (var i = 0, node; node = nodes[i]; i++) { if (!node.parentNode._counted) { h.index(node.parentNode, reverse, ofType); indexed.push(node.parentNode); } } if (formula.match(/^\d+$/)) { // just a number formula = Number(formula); for (var i = 0, node; node = nodes[i]; i++) if (node.nodeIndex == formula) results.push(node); } else if (m = formula.match(/^(-?\d*)?n(([+-])(\d+))?/)) { // an+b if (m[1] == "-") m[1] = -1; var a = m[1] ? Number(m[1]) : 1; var b = m[2] ? Number(m[2]) : 0; var indices = Selector.pseudos.getIndices(a, b, nodes.length); for (var i = 0, node, l = indices.length; node = nodes[i]; i++) { for (var j = 0; j < l; j++) if (node.nodeIndex == indices[j]) results.push(node); } } h.unmark(nodes); h.unmark(indexed); return results; }, 'empty': function(nodes, value, root) { for (var i = 0, results = [], node; node = nodes[i]; i++) { // IE treats comments as element nodes if (node.tagName == '!' || (node.firstChild && !node.innerHTML.match(/^\s*$/))) continue; results.push(node); } return results; }, 'not': function(nodes, selector, root) { var h = Selector.handlers, selectorType, m; var exclusions = new Selector(selector).findElements(root); h.mark(exclusions); for (var i = 0, results = [], node; node = nodes[i]; i++) if (!node._counted) results.push(node); h.unmark(exclusions); return results; }, 'enabled': function(nodes, value, root) { for (var i = 0, results = [], node; node = nodes[i]; i++) if (!node.disabled) results.push(node); return results; }, 'disabled': function(nodes, value, root) { for (var i = 0, results = [], node; node = nodes[i]; i++) if (node.disabled) results.push(node); return results; }, 'checked': function(nodes, value, root) { for (var i = 0, results = [], node; node = nodes[i]; i++) if (node.checked) results.push(node); return results; } }, operators: { '=': function(nv, v) { return nv == v; }, '!=': function(nv, v) { return nv != v; }, '^=': function(nv, v) { return nv.startsWith(v); }, '$=': function(nv, v) { return nv.endsWith(v); }, '*=': function(nv, v) { return nv.include(v); }, '~=': function(nv, v) { return (' ' + nv + ' ').include(' ' + v + ' '); }, '|=': function(nv, v) { return ('-' + nv.toUpperCase() + '-').include('-' + v.toUpperCase() + '-'); } }, matchElements: function(elements, expression) { var matches = new Selector(expression).findElements(), h = Selector.handlers; h.mark(matches); for (var i = 0, results = [], element; element = elements[i]; i++) if (element._counted) results.push(element); h.unmark(matches); return results; }, findElement: function(elements, expression, index) { if (typeof expression == 'number') { index = expression; expression = false; } return Selector.matchElements(elements, expression || '*')[index || 0]; }, findChildElements: function(element, expressions) { var exprs = expressions.join(','), expressions = []; exprs.scan(/(([\w#:.~>+()\s-]+|\*|\[.*?\])+)\s*(,|$)/, function(m) { expressions.push(m[1].strip()); }); var results = [], h = Selector.handlers; for (var i = 0, l = expressions.length, selector; i < l; i++) { selector = new Selector(expressions[i].strip()); h.concat(results, selector.findElements(element)); } return (l > 1) ? h.unique(results) : results; } }); function $$() { return Selector.findChildElements(document, $A(arguments)); } var Form = { reset: function(form) { $(form).reset(); return form; }, serializeElements: function(elements, getHash) { var data = elements.inject({}, function(result, element) { if (!element.disabled && element.name) { var key = element.name, value = $(element).getValue(); if (value != null) { if (key in result) { if (result[key].constructor != Array) result[key] = [result[key]]; result[key].push(value); } else result[key] = value; } } return result; }); return getHash ? data : Hash.toQueryString(data); } }; Form.Methods = { serialize: function(form, getHash) { return Form.serializeElements(Form.getElements(form), getHash); }, getElements: function(form) { return $A($(form).getElementsByTagName('*')).inject([], function(elements, child) { if (Form.Element.Serializers[child.tagName.toLowerCase()]) elements.push(Element.extend(child)); return elements; } ); }, getInputs: function(form, typeName, name) { form = $(form); var inputs = form.getElementsByTagName('input'); if (!typeName && !name) return $A(inputs).map(Element.extend); for (var i = 0, matchingInputs = [], length = inputs.length; i < length; i++) { var input = inputs[i]; if ((typeName && input.type != typeName) || (name && input.name != name)) continue; matchingInputs.push(Element.extend(input)); } return matchingInputs; }, disable: function(form) { form = $(form); Form.getElements(form).invoke('disable'); return form; }, enable: function(form) { form = $(form); Form.getElements(form).invoke('enable'); return form; }, findFirstElement: function(form) { return $(form).getElements().find(function(element) { return element.type != 'hidden' && !element.disabled && ['input', 'select', 'textarea'].include(element.tagName.toLowerCase()); }); }, focusFirstElement: function(form) { form = $(form); form.findFirstElement().activate(); return form; }, request: function(form, options) { form = $(form), options = Object.clone(options || {}); var params = options.parameters; options.parameters = form.serialize(true); if (params) { if (typeof params == 'string') params = params.toQueryParams(); Object.extend(options.parameters, params); } if (form.hasAttribute('method') && !options.method) options.method = form.method; return new Ajax.Request(form.readAttribute('action'), options); } } /*--------------------------------------------------------------------------*/ Form.Element = { focus: function(element) { $(element).focus(); return element; }, select: function(element) { $(element).select(); return element; } } Form.Element.Methods = { serialize: function(element) { element = $(element); if (!element.disabled && element.name) { var value = element.getValue(); if (value != undefined) { var pair = {}; pair[element.name] = value; return Hash.toQueryString(pair); } } return ''; }, getValue: function(element) { element = $(element); var method = element.tagName.toLowerCase(); return Form.Element.Serializers[method](element); }, clear: function(element) { $(element).value = ''; return element; }, present: function(element) { return $(element).value != ''; }, activate: function(element) { element = $(element); try { element.focus(); if (element.select && (element.tagName.toLowerCase() != 'input' || !['button', 'reset', 'submit'].include(element.type))) element.select(); } catch (e) {} return element; }, disable: function(element) { element = $(element); element.blur(); element.disabled = true; return element; }, enable: function(element) { element = $(element); element.disabled = false; return element; } } /*--------------------------------------------------------------------------*/ var Field = Form.Element; var $F = Form.Element.Methods.getValue; /*--------------------------------------------------------------------------*/ Form.Element.Serializers = { input: function(element) { switch (element.type.toLowerCase()) { case 'checkbox': case 'radio': return Form.Element.Serializers.inputSelector(element); default: return Form.Element.Serializers.textarea(element); } }, inputSelector: function(element) { return element.checked ? element.value : null; }, textarea: function(element) { return element.value; }, select: function(element) { return this[element.type == 'select-one' ? 'selectOne' : 'selectMany'](element); }, selectOne: function(element) { var index = element.selectedIndex; return index >= 0 ? this.optionValue(element.options[index]) : null; }, selectMany: function(element) { var values, length = element.length; if (!length) return null; for (var i = 0, values = []; i < length; i++) { var opt = element.options[i]; if (opt.selected) values.push(this.optionValue(opt)); } return values; }, optionValue: function(opt) { // extend element because hasAttribute may not be native return Element.extend(opt).hasAttribute('value') ? opt.value : opt.text; } } /*--------------------------------------------------------------------------*/ Abstract.TimedObserver = function() {} Abstract.TimedObserver.prototype = { initialize: function(element, frequency, callback) { this.frequency = frequency; this.element = $(element); this.callback = callback; this.lastValue = this.getValue(); this.registerCallback(); }, registerCallback: function() { setInterval(this.onTimerEvent.bind(this), this.frequency * 1000); }, onTimerEvent: function() { var value = this.getValue(); var changed = ('string' == typeof this.lastValue && 'string' == typeof value ? this.lastValue != value : String(this.lastValue) != String(value)); if (changed) { this.callback(this.element, value); this.lastValue = value; } } } Form.Element.Observer = Class.create(); Form.Element.Observer.prototype = Object.extend(new Abstract.TimedObserver(), { getValue: function() { return Form.Element.getValue(this.element); } }); Form.Observer = Class.create(); Form.Observer.prototype = Object.extend(new Abstract.TimedObserver(), { getValue: function() { return Form.serialize(this.element); } }); /*--------------------------------------------------------------------------*/ Abstract.EventObserver = function() {} Abstract.EventObserver.prototype = { initialize: function(element, callback) { this.element = $(element); this.callback = callback; this.lastValue = this.getValue(); if (this.element.tagName.toLowerCase() == 'form') this.registerFormCallbacks(); else this.registerCallback(this.element); }, onElementEvent: function() { var value = this.getValue(); if (this.lastValue != value) { this.callback(this.element, value); this.lastValue = value; } }, registerFormCallbacks: function() { Form.getElements(this.element).each(this.registerCallback.bind(this)); }, registerCallback: function(element) { if (element.type) { switch (element.type.toLowerCase()) { case 'checkbox': case 'radio': Event.observe(element, 'click', this.onElementEvent.bind(this)); break; default: Event.observe(element, 'change', this.onElementEvent.bind(this)); break; } } } } Form.Element.EventObserver = Class.create(); Form.Element.EventObserver.prototype = Object.extend(new Abstract.EventObserver(), { getValue: function() { return Form.Element.getValue(this.element); } }); Form.EventObserver = Class.create(); Form.EventObserver.prototype = Object.extend(new Abstract.EventObserver(), { getValue: function() { return Form.serialize(this.element); } }); if (!window.Event) { var Event = new Object(); } Object.extend(Event, { KEY_BACKSPACE: 8, KEY_TAB: 9, KEY_RETURN: 13, KEY_ESC: 27, KEY_LEFT: 37, KEY_UP: 38, KEY_RIGHT: 39, KEY_DOWN: 40, KEY_DELETE: 46, KEY_HOME: 36, KEY_END: 35, KEY_PAGEUP: 33, KEY_PAGEDOWN: 34, element: function(event) { return $(event.target || event.srcElement); }, isLeftClick: function(event) { return (((event.which) && (event.which == 1)) || ((event.button) && (event.button == 1))); }, pointerX: function(event) { return event.pageX || (event.clientX + (document.documentElement.scrollLeft || document.body.scrollLeft)); }, pointerY: function(event) { return event.pageY || (event.clientY + (document.documentElement.scrollTop || document.body.scrollTop)); }, stop: function(event) { if (event.preventDefault) { event.preventDefault(); event.stopPropagation(); } else { event.returnValue = false; event.cancelBubble = true; } }, // find the first node with the given tagName, starting from the // node the event was triggered on; traverses the DOM upwards findElement: function(event, tagName) { var element = Event.element(event); while (element.parentNode && (!element.tagName || (element.tagName.toUpperCase() != tagName.toUpperCase()))) element = element.parentNode; return element; }, observers: false, _observeAndCache: function(element, name, observer, useCapture) { if (!this.observers) this.observers = []; if (element.addEventListener) { this.observers.push([element, name, observer, useCapture]); element.addEventListener(name, observer, useCapture); } else if (element.attachEvent) { this.observers.push([element, name, observer, useCapture]); element.attachEvent('on' + name, observer); } }, unloadCache: function() { if (!Event.observers) return; for (var i = 0, length = Event.observers.length; i < length; i++) { Event.stopObserving.apply(this, Event.observers[i]); Event.observers[i][0] = null; } Event.observers = false; }, observe: function(element, name, observer, useCapture) { element = $(element); useCapture = useCapture || false; if (name == 'keypress' && (Prototype.Browser.WebKit || element.attachEvent)) name = 'keydown'; Event._observeAndCache(element, name, observer, useCapture); }, stopObserving: function(element, name, observer, useCapture) { element = $(element); useCapture = useCapture || false; if (name == 'keypress' && (Prototype.Browser.WebKit || element.attachEvent)) name = 'keydown'; if (element.removeEventListener) { element.removeEventListener(name, observer, useCapture); } else if (element.detachEvent) { try { element.detachEvent('on' + name, observer); } catch (e) {} } } }); /* prevent memory leaks in IE */ if (Prototype.Browser.IE) Event.observe(window, 'unload', Event.unloadCache, false); var Position = { // set to true if needed, warning: firefox performance problems // NOT neeeded for page scrolling, only if draggable contained in // scrollable elements includeScrollOffsets: false, // must be called before calling withinIncludingScrolloffset, every time the // page is scrolled prepare: function() { this.deltaX = window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft || 0; this.deltaY = window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop || 0; }, realOffset: function(element) { var valueT = 0, valueL = 0; do { valueT += element.scrollTop || 0; valueL += element.scrollLeft || 0; element = element.parentNode; } while (element); return [valueL, valueT]; }, cumulativeOffset: function(element) { var valueT = 0, valueL = 0; do { valueT += element.offsetTop || 0; valueL += element.offsetLeft || 0; element = element.offsetParent; } while (element); return [valueL, valueT]; }, positionedOffset: function(element) { var valueT = 0, valueL = 0; do { valueT += element.offsetTop || 0; valueL += element.offsetLeft || 0; element = element.offsetParent; if (element) { if(element.tagName=='BODY') break; var p = Element.getStyle(element, 'position'); if (p == 'relative' || p == 'absolute') break; } } while (element); return [valueL, valueT]; }, offsetParent: function(element) { if (element.offsetParent) return element.offsetParent; if (element == document.body) return element; while ((element = element.parentNode) && element != document.body) if (Element.getStyle(element, 'position') != 'static') return element; return document.body; }, // caches x/y coordinate pair to use with overlap within: function(element, x, y) { if (this.includeScrollOffsets) return this.withinIncludingScrolloffsets(element, x, y); this.xcomp = x; this.ycomp = y; this.offset = this.cumulativeOffset(element); return (y >= this.offset[1] && y < this.offset[1] + element.offsetHeight && x >= this.offset[0] && x < this.offset[0] + element.offsetWidth); }, withinIncludingScrolloffsets: function(element, x, y) { var offsetcache = this.realOffset(element); this.xcomp = x + offsetcache[0] - this.deltaX; this.ycomp = y + offsetcache[1] - this.deltaY; this.offset = this.cumulativeOffset(element); return (this.ycomp >= this.offset[1] && this.ycomp < this.offset[1] + element.offsetHeight && this.xcomp >= this.offset[0] && this.xcomp < this.offset[0] + element.offsetWidth); }, // within must be called directly before overlap: function(mode, element) { if (!mode) return 0; if (mode == 'vertical') return ((this.offset[1] + element.offsetHeight) - this.ycomp) / element.offsetHeight; if (mode == 'horizontal') return ((this.offset[0] + element.offsetWidth) - this.xcomp) / element.offsetWidth; }, page: function(forElement) { var valueT = 0, valueL = 0; var element = forElement; do { valueT += element.offsetTop || 0; valueL += element.offsetLeft || 0; // Safari fix if (element.offsetParent == document.body) if (Element.getStyle(element,'position')=='absolute') break; } while (element = element.offsetParent); element = forElement; do { if (!window.opera || element.tagName=='BODY') { valueT -= element.scrollTop || 0; valueL -= element.scrollLeft || 0; } } while (element = element.parentNode); return [valueL, valueT]; }, clone: function(source, target) { var options = Object.extend({ setLeft: true, setTop: true, setWidth: true, setHeight: true, offsetTop: 0, offsetLeft: 0 }, arguments[2] || {}) // find page position of source source = $(source); var p = Position.page(source); // find coordinate system to use target = $(target); var delta = [0, 0]; var parent = null; // delta [0,0] will do fine with position: fixed elements, // position:absolute needs offsetParent deltas if (Element.getStyle(target,'position') == 'absolute') { parent = Position.offsetParent(target); delta = Position.page(parent); } // correct by body offsets (fixes Safari) if (parent == document.body) { delta[0] -= document.body.offsetLeft; delta[1] -= document.body.offsetTop; } // set position if(options.setLeft) target.style.left = (p[0] - delta[0] + options.offsetLeft) + 'px'; if(options.setTop) target.style.top = (p[1] - delta[1] + options.offsetTop) + 'px'; if(options.setWidth) target.style.width = source.offsetWidth + 'px'; if(options.setHeight) target.style.height = source.offsetHeight + 'px'; }, absolutize: function(element) { element = $(element); if (element.style.position == 'absolute') return; Position.prepare(); var offsets = Position.positionedOffset(element); var top = offsets[1]; var left = offsets[0]; var width = element.clientWidth; var height = element.clientHeight; element._originalLeft = left - parseFloat(element.style.left || 0); element._originalTop = top - parseFloat(element.style.top || 0); element._originalWidth = element.style.width; element._originalHeight = element.style.height; element.style.position = 'absolute'; element.style.top = top + 'px'; element.style.left = left + 'px'; element.style.width = width + 'px'; element.style.height = height + 'px'; }, relativize: function(element) { element = $(element); if (element.style.position == 'relative') return; Position.prepare(); element.style.position = 'relative'; var top = parseFloat(element.style.top || 0) - (element._originalTop || 0); var left = parseFloat(element.style.left || 0) - (element._originalLeft || 0); element.style.top = top + 'px'; element.style.left = left + 'px'; element.style.height = element._originalHeight; element.style.width = element._originalWidth; } } // Safari returns margins on body which is incorrect if the child is absolutely // positioned. For performance reasons, redefine Position.cumulativeOffset for // KHTML/WebKit only. if (Prototype.Browser.WebKit) { Position.cumulativeOffset = function(element) { var valueT = 0, valueL = 0; do { valueT += element.offsetTop || 0; valueL += element.offsetLeft || 0; if (element.offsetParent == document.body) if (Element.getStyle(element, 'position') == 'absolute') break; element = element.offsetParent; } while (element); return [valueL, valueT]; } } Element.addMethods();