Metacat

// Copyright (c) 2005 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)

// Contributors:

//  Justin Palmer (http://encytemedia.com/)

//  Mark Pilgrim (http://diveintomark.org/)

//  Martin Bialasinki

// 

// See scriptaculous.js for full license.  

/* ------------- element ext -------------- */  

// 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.setStyle = function(element, style) {

  element = $(element);

  for(k in style) element.style[k.camelize()] = style[k];

}

Element.setContentZoom = function(element, percent) {  

  Element.setStyle(element, {fontSize: (percent/100) + 'em'});   

  if(navigator.appVersion.indexOf('AppleWebKit')>0) window.scrollBy(0,0);  

}

Element.getOpacity = function(element){  

  var opacity;

  if (opacity = Element.getStyle(element, 'opacity'))  

    return parseFloat(opacity);  

  if (opacity = (Element.getStyle(element, 'filter') || '').match(/alpha\(opacity=(.*)\)/))  

    if(opacity[1]) return parseFloat(opacity[1]) / 100;  

  return 1.0;  

}

Element.setOpacity = function(element, value){  

  element= $(element);  

  if (value == 1){

    Element.setStyle(element, { opacity: 

      (/Gecko/.test(navigator.userAgent) && !/Konqueror|Safari|KHTML/.test(navigator.userAgent)) ? 

      0.999999 : null });

    if(/MSIE/.test(navigator.userAgent))  

      Element.setStyle(element, {filter: Element.getStyle(element,'filter').replace(/alpha\([^\)]*\)/gi,'')});  

  } else {  

    if(value < 0.00001) value = 0;  

    Element.setStyle(element, {opacity: value});

    if(/MSIE/.test(navigator.userAgent))  

     Element.setStyle(element, 

       { filter: Element.getStyle(element,'filter').replace(/alpha\([^\)]*\)/gi,'') +

                 'alpha(opacity='+value*100+')' });  

  }   

}  

Element.getInlineOpacity = function(element){  

  return $(element).style.opacity || '';

}  

Element.childrenWithClassName = function(element, className) {  

  return $A($(element).getElementsByTagName('*')).select(

    function(c) { return Element.hasClassName(c, className) });

}

Array.prototype.call = function() {

  var args = arguments;

  this.each(function(f){ f.apply(this, args) });

}

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

var Effect = {

  tagifyText: function(element) {

    var tagifyStyle = 'position:relative';

    if(/MSIE/.test(navigator.userAgent)) 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(element) ? 

      Effect.PAIRS[effect][1] : Effect.PAIRS[effect][0]](element, options);

  }

};

var Effect2 = Effect; // deprecated

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

Effect.Transitions = {}

Effect.Transitions.linear = function(pos) {

  return pos;

}

Effect.Transitions.sinoidal = function(pos) {

  return (-Math.cos(pos*Math.PI)/2) + 0.5;

}

Effect.Transitions.reverse  = function(pos) {

  return 1-pos;

}

Effect.Transitions.flicker = function(pos) {

  return ((-Math.cos(pos*Math.PI)/4) + 0.75) + Math.random()/4;

}

Effect.Transitions.wobble = function(pos) {

  return (-Math.cos(pos*Math.PI*(9*pos))/2) + 0.5;

}

Effect.Transitions.pulse = function(pos) {

  return (Math.floor(pos*10) % 2 == 0 ? 

    (pos*10-Math.floor(pos*10)) : 1-(pos*10-Math.floor(pos*10)));

}

Effect.Transitions.none = function(pos) {

  return 0;

}

Effect.Transitions.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 '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), 40);

  },

  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();

    this.effects.invoke('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:        25.0,  // max. 25fps due to Effect.Queue implementation

  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) {

    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.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.finishOn - this.startOn);

      var frame = Math.round(pos * this.options.fps * this.options.duration);

      if(frame > this.currentFrame) {

        this.render(pos);

        this.currentFrame = frame;

      }

    }

  },

  render: function(pos) {

    if(this.state == 'idle') {

      this.state = 'running';

      this.event('beforeSetup');

      if(this.setup) this.setup();

      this.event('afterSetup');

    }

    if(this.state == 'running') {

      if(this.options.transition) pos = this.options.transition(pos);

      pos *= (this.options.to-this.options.from);

      pos += this.options.from;

      this.position = pos;

      this.event('beforeUpdate');

      if(this.update) this.update(pos);

      this.event('afterUpdate');

    }

  },

  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() {

    return '#<Effect:' + $H(this).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.Opacity = Class.create();

Object.extend(Object.extend(Effect.Opacity.prototype, Effect.Base.prototype), {

  initialize: function(element) {

    this.element = $(element);

    // make this work on IE on elements without 'layout'

    if(/MSIE/.test(navigator.userAgent) && (!this.element.hasLayout))

      Element.setStyle(this.element, {zoom: 1});

    var options = Object.extend({

      from: Element.getOpacity(this.element) || 0.0,

      to:   1.0

    }, arguments[1] || {});

    this.start(options);

  },

  update: function(position) {

    Element.setOpacity(this.element, position);

  }

});

Effect.Move = Class.create();

Object.extend(Object.extend(Effect.Move.prototype, Effect.Base.prototype), {

  initialize: function(element) {

    this.element = $(element);

    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) 

    Element.makePositioned(this.element);

    this.originalLeft = parseFloat(Element.getStyle(this.element,'left') || '0');

    this.originalTop  = parseFloat(Element.getStyle(this.element,'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) {

    Element.setStyle(this.element, {

      left: this.options.x  * position + this.originalLeft + 'px',

      top:  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)

    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 = Element.getStyle(this.element,'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 = Element.getStyle(this.element,'font-size') || '100%';

    ['em','px','%'].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)

      Element.setStyle(this.element, {fontSize: this.fontSize * currentScale + this.fontSizeType });

    this.setDimensions(this.dims[0] * currentScale, this.dims[1] * currentScale);

  },

  finish: function(position) {

    if (this.restoreAfterFinish) Element.setStyle(this.element, this.originalStyle);

  },

  setDimensions: function(height, width) {

    var d = {};

    if(this.options.scaleX) d.width = width + 'px';

    if(this.options.scaleY) d.height = 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';

      }

    }

    Element.setStyle(this.element, d);

  }

});

Effect.Highlight = Class.create();

Object.extend(Object.extend(Effect.Highlight.prototype, Effect.Base.prototype), {

  initialize: function(element) {

    this.element = $(element);

    var options = Object.extend({ startcolor: '#ffff99' }, arguments[1] || {});

    this.start(options);

  },

  setup: function() {

    // Prevent executing on elements not in the layout flow

    if(Element.getStyle(this.element, 'display')=='none') { this.cancel(); return; }

    // Disable background image during the effect

    this.oldStyle = {

      backgroundImage: Element.getStyle(this.element, 'background-image') };

    Element.setStyle(this.element, {backgroundImage: 'none'});

    if(!this.options.endcolor)

      this.options.endcolor = Element.getStyle(this.element, 'background-color').parseColor('#ffffff');

    if(!this.options.restorecolor)

      this.options.restorecolor = Element.getStyle(this.element, '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) {

    Element.setStyle(this.element,{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() {

    Element.setStyle(this.element, 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) {

  var oldOpacity = Element.getInlineOpacity(element);

  var options = Object.extend({

  from: Element.getOpacity(element) || 1.0,

  to:   0.0,

  afterFinishInternal: function(effect) { with(Element) { 

    if(effect.options.to!=0) return;

    hide(effect.element);

    setStyle(effect.element, {opacity: oldOpacity}); }}

  }, arguments[1] || {});

  return new Effect.Opacity(element,options);

}

Effect.Appear = function(element) {

  var options = Object.extend({

  from: (Element.getStyle(element, 'display') == 'none' ? 0.0 : Element.getOpacity(element) || 0.0),

  to:   1.0,

  beforeSetup: function(effect) { with(Element) {

    setOpacity(effect.element, effect.options.from);

    show(effect.element); }}

  }, arguments[1] || {});

  return new Effect.Opacity(element,options);

}

Effect.Puff = function(element) {

  element = $(element);

  var oldStyle = { opacity: Element.getInlineOpacity(element), position: Element.getStyle(element, 'position') };

  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) { with(Element) {

        setStyle(effect.effects[0].element, {position: 'absolute'}); }},

      afterFinishInternal: function(effect) { with(Element) {

         hide(effect.effects[0].element);

         setStyle(effect.effects[0].element, oldStyle); }}

     }, arguments[1] || {})

   );

}

Effect.BlindUp = function(element) {

  element = $(element);

  Element.makeClipping(element);

  return new Effect.Scale(element, 0, 

    Object.extend({ scaleContent: false, 

      scaleX: false, 

      restoreAfterFinish: true,

      afterFinishInternal: function(effect) { with(Element) {

        [hide, undoClipping].call(effect.element); }} 

    }, arguments[1] || {})

  );

}

Effect.BlindDown = function(element) {

  element = $(element);

  var elementDimensions = Element.getDimensions(element);

  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) { with(Element) {

        makeClipping(effect.element);

        setStyle(effect.element, {height: '0px'});

        show(effect.element); 

      }},  

      afterFinishInternal: function(effect) {

        Element.undoClipping(effect.element);

      }

    }, arguments[1] || {})

  );

}

Effect.SwitchOff = function(element) {

  element = $(element);

  var oldOpacity = Element.getInlineOpacity(element);

  return new Effect.Appear(element, { 

    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) { with(Element) {

          [makePositioned,makeClipping].call(effect.element);

        }},

        afterFinishInternal: function(effect) { with(Element) {

          [hide,undoClipping,undoPositioned].call(effect.element);

          setStyle(effect.element, {opacity: oldOpacity});

        }}

      })

    }

  });

}

Effect.DropOut = function(element) {

  element = $(element);

  var oldStyle = {

    top: Element.getStyle(element, 'top'),

    left: Element.getStyle(element, 'left'),

    opacity: Element.getInlineOpacity(element) };

  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) { with(Element) {

          makePositioned(effect.effects[0].element); }},

        afterFinishInternal: function(effect) { with(Element) {

          [hide, undoPositioned].call(effect.effects[0].element);

          setStyle(effect.effects[0].element, oldStyle); }} 

      }, arguments[1] || {}));

}

Effect.Shake = function(element) {

  element = $(element);

  var oldStyle = {

    top: Element.getStyle(element, 'top'),

    left: Element.getStyle(element, '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) { with(Element) {

        undoPositioned(effect.element);

        setStyle(effect.element, oldStyle);

  }}}) }}) }}) }}) }}) }});

}

Effect.SlideDown = function(element) {

  element = $(element);

  Element.cleanWhitespace(element);

  // SlideDown need to have the content of the element wrapped in a container element with fixed height!

  var oldInnerBottom = Element.getStyle(element.firstChild, 'bottom');

  var elementDimensions = Element.getDimensions(element);

  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) { with(Element) {

      makePositioned(effect.element);

      makePositioned(effect.element.firstChild);

      if(window.opera) setStyle(effect.element, {top: ''});

      makeClipping(effect.element);

      setStyle(effect.element, {height: '0px'});

      show(element); }},

    afterUpdateInternal: function(effect) { with(Element) {

      setStyle(effect.element.firstChild, {bottom:

        (effect.dims[0] - effect.element.clientHeight) + 'px' }); }},

    afterFinishInternal: function(effect) { with(Element) {

      undoClipping(effect.element); 

      // IE will crash if child is undoPositioned first

      if(/MSIE/.test(navigator.userAgent)){

        undoPositioned(effect.element);

        undoPositioned(effect.element.firstChild);

      }else{

        undoPositioned(effect.element.firstChild);

        undoPositioned(effect.element);

      }

      setStyle(effect.element.firstChild, {bottom: oldInnerBottom}); }}

    }, arguments[1] || {})

  );

}

Effect.SlideUp = function(element) {

  element = $(element);

  Element.cleanWhitespace(element);

  var oldInnerBottom = Element.getStyle(element.firstChild, 'bottom');

  return new Effect.Scale(element, 0, 

   Object.extend({ scaleContent: false, 

    scaleX: false, 

    scaleMode: 'box',

    scaleFrom: 100,

    restoreAfterFinish: true,

    beforeStartInternal: function(effect) { with(Element) {

      makePositioned(effect.element);

      makePositioned(effect.element.firstChild);

      if(window.opera) setStyle(effect.element, {top: ''});

      makeClipping(effect.element);

      show(element); }},  

    afterUpdateInternal: function(effect) { with(Element) {

      setStyle(effect.element.firstChild, {bottom:

        (effect.dims[0] - effect.element.clientHeight) + 'px' }); }},

    afterFinishInternal: function(effect) { with(Element) {

        [hide, undoClipping].call(effect.element); 

        undoPositioned(effect.element.firstChild);

        undoPositioned(effect.element);

        setStyle(effect.element.firstChild, {bottom: oldInnerBottom}); }}

   }, 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) { with(Element) {

        makeClipping(effect.element); }},  

      afterFinishInternal: function(effect) { with(Element) {

        hide(effect.element); 

        undoClipping(effect.element); }}

  });

}

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(element) };

  var dims = Element.getDimensions(element);    

  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) { with(Element) {

      hide(effect.element);

      makeClipping(effect.element);

      makePositioned(effect.element);

    }},

    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) { with(Element) {

               setStyle(effect.effects[0].element, {height: '0px'});

               show(effect.effects[0].element); }},

             afterFinishInternal: function(effect) { with(Element) {

               [undoClipping, undoPositioned].call(effect.effects[0].element); 

               setStyle(effect.effects[0].element, 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(element) };

  var dims = Element.getDimensions(element);

  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) { with(Element) {

           [makePositioned, makeClipping].call(effect.effects[0].element) }},

         afterFinishInternal: function(effect) { with(Element) {

           [hide, undoClipping, undoPositioned].call(effect.effects[0].element);

           setStyle(effect.effects[0].element, oldStyle); }}

       }, options)

  );

}

Effect.Pulsate = function(element) {

  element = $(element);

  var options    = arguments[1] || {};

  var oldOpacity = Element.getInlineOpacity(element);

  var transition = options.transition || Effect.Transitions.sinoidal;

  var reverser   = function(pos){ return transition(1-Effect.Transitions.pulse(pos)) };

  reverser.bind(transition);

  return new Effect.Opacity(element, 

    Object.extend(Object.extend({  duration: 3.0, from: 0,

      afterFinishInternal: function(effect) { Element.setStyle(effect.element, {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(element);

  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) { with(Element) {

        [hide, undoClipping].call(effect.element); 

        setStyle(effect.element, oldStyle);

      }} });

  }}, arguments[1] || {}));

}