terom@23: // script.aculo.us effects.js v1.8.1, Thu Jan 03 22:07:12 -0500 2008
terom@23: 
terom@23: // Copyright (c) 2005-2007 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
terom@23: // Contributors:
terom@23: //  Justin Palmer (http://encytemedia.com/)
terom@23: //  Mark Pilgrim (http://diveintomark.org/)
terom@23: //  Martin Bialasinki
terom@23: // 
terom@23: // script.aculo.us is freely distributable under the terms of an MIT-style license.
terom@23: // For details, see the script.aculo.us web site: http://script.aculo.us/ 
terom@23: 
terom@23: // converts rgb() and #xxx to #xxxxxx format,  
terom@23: // returns self (or first argument) if not convertable  
terom@23: String.prototype.parseColor = function() {  
terom@23:   var color = '#';
terom@23:   if (this.slice(0,4) == 'rgb(') {  
terom@23:     var cols = this.slice(4,this.length-1).split(',');  
terom@23:     var i=0; do { color += parseInt(cols[i]).toColorPart() } while (++i<3);  
terom@23:   } else {  
terom@23:     if (this.slice(0,1) == '#') {  
terom@23:       if (this.length==4) for(var i=1;i<4;i++) color += (this.charAt(i) + this.charAt(i)).toLowerCase();  
terom@23:       if (this.length==7) color = this.toLowerCase();  
terom@23:     }  
terom@23:   }  
terom@23:   return (color.length==7 ? color : (arguments[0] || this));  
terom@23: };
terom@23: 
terom@23: /*--------------------------------------------------------------------------*/
terom@23: 
terom@23: Element.collectTextNodes = function(element) {  
terom@23:   return $A($(element).childNodes).collect( function(node) {
terom@23:     return (node.nodeType==3 ? node.nodeValue : 
terom@23:       (node.hasChildNodes() ? Element.collectTextNodes(node) : ''));
terom@23:   }).flatten().join('');
terom@23: };
terom@23: 
terom@23: Element.collectTextNodesIgnoreClass = function(element, className) {  
terom@23:   return $A($(element).childNodes).collect( function(node) {
terom@23:     return (node.nodeType==3 ? node.nodeValue : 
terom@23:       ((node.hasChildNodes() && !Element.hasClassName(node,className)) ? 
terom@23:         Element.collectTextNodesIgnoreClass(node, className) : ''));
terom@23:   }).flatten().join('');
terom@23: };
terom@23: 
terom@23: Element.setContentZoom = function(element, percent) {
terom@23:   element = $(element);  
terom@23:   element.setStyle({fontSize: (percent/100) + 'em'});   
terom@23:   if (Prototype.Browser.WebKit) window.scrollBy(0,0);
terom@23:   return element;
terom@23: };
terom@23: 
terom@23: Element.getInlineOpacity = function(element){
terom@23:   return $(element).style.opacity || '';
terom@23: };
terom@23: 
terom@23: Element.forceRerendering = function(element) {
terom@23:   try {
terom@23:     element = $(element);
terom@23:     var n = document.createTextNode(' ');
terom@23:     element.appendChild(n);
terom@23:     element.removeChild(n);
terom@23:   } catch(e) { }
terom@23: };
terom@23: 
terom@23: /*--------------------------------------------------------------------------*/
terom@23: 
terom@23: var Effect = {
terom@23:   _elementDoesNotExistError: {
terom@23:     name: 'ElementDoesNotExistError',
terom@23:     message: 'The specified DOM element does not exist, but is required for this effect to operate'
terom@23:   },
terom@23:   Transitions: {
terom@23:     linear: Prototype.K,
terom@23:     sinoidal: function(pos) {
terom@23:       return (-Math.cos(pos*Math.PI)/2) + 0.5;
terom@23:     },
terom@23:     reverse: function(pos) {
terom@23:       return 1-pos;
terom@23:     },
terom@23:     flicker: function(pos) {
terom@23:       var pos = ((-Math.cos(pos*Math.PI)/4) + 0.75) + Math.random()/4;
terom@23:       return pos > 1 ? 1 : pos;
terom@23:     },
terom@23:     wobble: function(pos) {
terom@23:       return (-Math.cos(pos*Math.PI*(9*pos))/2) + 0.5;
terom@23:     },
terom@23:     pulse: function(pos, pulses) { 
terom@23:       pulses = pulses || 5; 
terom@23:       return (
terom@23:         ((pos % (1/pulses)) * pulses).round() == 0 ? 
terom@23:               ((pos * pulses * 2) - (pos * pulses * 2).floor()) : 
terom@23:           1 - ((pos * pulses * 2) - (pos * pulses * 2).floor())
terom@23:         );
terom@23:     },
terom@23:     spring: function(pos) { 
terom@23:       return 1 - (Math.cos(pos * 4.5 * Math.PI) * Math.exp(-pos * 6)); 
terom@23:     },
terom@23:     none: function(pos) {
terom@23:       return 0;
terom@23:     },
terom@23:     full: function(pos) {
terom@23:       return 1;
terom@23:     }
terom@23:   },
terom@23:   DefaultOptions: {
terom@23:     duration:   1.0,   // seconds
terom@23:     fps:        100,   // 100= assume 66fps max.
terom@23:     sync:       false, // true for combining
terom@23:     from:       0.0,
terom@23:     to:         1.0,
terom@23:     delay:      0.0,
terom@23:     queue:      'parallel'
terom@23:   },
terom@23:   tagifyText: function(element) {
terom@23:     var tagifyStyle = 'position:relative';
terom@23:     if (Prototype.Browser.IE) tagifyStyle += ';zoom:1';
terom@23:     
terom@23:     element = $(element);
terom@23:     $A(element.childNodes).each( function(child) {
terom@23:       if (child.nodeType==3) {
terom@23:         child.nodeValue.toArray().each( function(character) {
terom@23:           element.insertBefore(
terom@23:             new Element('span', {style: tagifyStyle}).update(
terom@23:               character == ' ' ? String.fromCharCode(160) : character), 
terom@23:               child);
terom@23:         });
terom@23:         Element.remove(child);
terom@23:       }
terom@23:     });
terom@23:   },
terom@23:   multiple: function(element, effect) {
terom@23:     var elements;
terom@23:     if (((typeof element == 'object') || 
terom@23:         Object.isFunction(element)) && 
terom@23:        (element.length))
terom@23:       elements = element;
terom@23:     else
terom@23:       elements = $(element).childNodes;
terom@23:       
terom@23:     var options = Object.extend({
terom@23:       speed: 0.1,
terom@23:       delay: 0.0
terom@23:     }, arguments[2] || { });
terom@23:     var masterDelay = options.delay;
terom@23: 
terom@23:     $A(elements).each( function(element, index) {
terom@23:       new effect(element, Object.extend(options, { delay: index * options.speed + masterDelay }));
terom@23:     });
terom@23:   },
terom@23:   PAIRS: {
terom@23:     'slide':  ['SlideDown','SlideUp'],
terom@23:     'blind':  ['BlindDown','BlindUp'],
terom@23:     'appear': ['Appear','Fade']
terom@23:   },
terom@23:   toggle: function(element, effect) {
terom@23:     element = $(element);
terom@23:     effect = (effect || 'appear').toLowerCase();
terom@23:     var options = Object.extend({
terom@23:       queue: { position:'end', scope:(element.id || 'global'), limit: 1 }
terom@23:     }, arguments[2] || { });
terom@23:     Effect[element.visible() ? 
terom@23:       Effect.PAIRS[effect][1] : Effect.PAIRS[effect][0]](element, options);
terom@23:   }
terom@23: };
terom@23: 
terom@23: Effect.DefaultOptions.transition = Effect.Transitions.sinoidal;
terom@23: 
terom@23: /* ------------- core effects ------------- */
terom@23: 
terom@23: Effect.ScopedQueue = Class.create(Enumerable, {
terom@23:   initialize: function() {
terom@23:     this.effects  = [];
terom@23:     this.interval = null;    
terom@23:   },
terom@23:   _each: function(iterator) {
terom@23:     this.effects._each(iterator);
terom@23:   },
terom@23:   add: function(effect) {
terom@23:     var timestamp = new Date().getTime();
terom@23:     
terom@23:     var position = Object.isString(effect.options.queue) ? 
terom@23:       effect.options.queue : effect.options.queue.position;
terom@23:     
terom@23:     switch(position) {
terom@23:       case 'front':
terom@23:         // move unstarted effects after this effect  
terom@23:         this.effects.findAll(function(e){ return e.state=='idle' }).each( function(e) {
terom@23:             e.startOn  += effect.finishOn;
terom@23:             e.finishOn += effect.finishOn;
terom@23:           });
terom@23:         break;
terom@23:       case 'with-last':
terom@23:         timestamp = this.effects.pluck('startOn').max() || timestamp;
terom@23:         break;
terom@23:       case 'end':
terom@23:         // start effect after last queued effect has finished
terom@23:         timestamp = this.effects.pluck('finishOn').max() || timestamp;
terom@23:         break;
terom@23:     }
terom@23:     
terom@23:     effect.startOn  += timestamp;
terom@23:     effect.finishOn += timestamp;
terom@23: 
terom@23:     if (!effect.options.queue.limit || (this.effects.length < effect.options.queue.limit))
terom@23:       this.effects.push(effect);
terom@23:     
terom@23:     if (!this.interval)
terom@23:       this.interval = setInterval(this.loop.bind(this), 15);
terom@23:   },
terom@23:   remove: function(effect) {
terom@23:     this.effects = this.effects.reject(function(e) { return e==effect });
terom@23:     if (this.effects.length == 0) {
terom@23:       clearInterval(this.interval);
terom@23:       this.interval = null;
terom@23:     }
terom@23:   },
terom@23:   loop: function() {
terom@23:     var timePos = new Date().getTime();
terom@23:     for(var i=0, len=this.effects.length;i<len;i++) 
terom@23:       this.effects[i] && this.effects[i].loop(timePos);
terom@23:   }
terom@23: });
terom@23: 
terom@23: Effect.Queues = {
terom@23:   instances: $H(),
terom@23:   get: function(queueName) {
terom@23:     if (!Object.isString(queueName)) return queueName;
terom@23:     
terom@23:     return this.instances.get(queueName) ||
terom@23:       this.instances.set(queueName, new Effect.ScopedQueue());
terom@23:   }
terom@23: };
terom@23: Effect.Queue = Effect.Queues.get('global');
terom@23: 
terom@23: Effect.Base = Class.create({
terom@23:   position: null,
terom@23:   start: function(options) {
terom@23:     function codeForEvent(options,eventName){
terom@23:       return (
terom@23:         (options[eventName+'Internal'] ? 'this.options.'+eventName+'Internal(this);' : '') +
terom@23:         (options[eventName] ? 'this.options.'+eventName+'(this);' : '')
terom@23:       );
terom@23:     }
terom@23:     if (options && options.transition === false) options.transition = Effect.Transitions.linear;
terom@23:     this.options      = Object.extend(Object.extend({ },Effect.DefaultOptions), options || { });
terom@23:     this.currentFrame = 0;
terom@23:     this.state        = 'idle';
terom@23:     this.startOn      = this.options.delay*1000;
terom@23:     this.finishOn     = this.startOn+(this.options.duration*1000);
terom@23:     this.fromToDelta  = this.options.to-this.options.from;
terom@23:     this.totalTime    = this.finishOn-this.startOn;
terom@23:     this.totalFrames  = this.options.fps*this.options.duration;
terom@23:     
terom@23:     eval('this.render = function(pos){ '+
terom@23:       'if (this.state=="idle"){this.state="running";'+
terom@23:       codeForEvent(this.options,'beforeSetup')+
terom@23:       (this.setup ? 'this.setup();':'')+ 
terom@23:       codeForEvent(this.options,'afterSetup')+
terom@23:       '};if (this.state=="running"){'+
terom@23:       'pos=this.options.transition(pos)*'+this.fromToDelta+'+'+this.options.from+';'+
terom@23:       'this.position=pos;'+
terom@23:       codeForEvent(this.options,'beforeUpdate')+
terom@23:       (this.update ? 'this.update(pos);':'')+
terom@23:       codeForEvent(this.options,'afterUpdate')+
terom@23:       '}}');
terom@23:     
terom@23:     this.event('beforeStart');
terom@23:     if (!this.options.sync)
terom@23:       Effect.Queues.get(Object.isString(this.options.queue) ? 
terom@23:         'global' : this.options.queue.scope).add(this);
terom@23:   },
terom@23:   loop: function(timePos) {
terom@23:     if (timePos >= this.startOn) {
terom@23:       if (timePos >= this.finishOn) {
terom@23:         this.render(1.0);
terom@23:         this.cancel();
terom@23:         this.event('beforeFinish');
terom@23:         if (this.finish) this.finish(); 
terom@23:         this.event('afterFinish');
terom@23:         return;  
terom@23:       }
terom@23:       var pos   = (timePos - this.startOn) / this.totalTime,
terom@23:           frame = (pos * this.totalFrames).round();
terom@23:       if (frame > this.currentFrame) {
terom@23:         this.render(pos);
terom@23:         this.currentFrame = frame;
terom@23:       }
terom@23:     }
terom@23:   },
terom@23:   cancel: function() {
terom@23:     if (!this.options.sync)
terom@23:       Effect.Queues.get(Object.isString(this.options.queue) ? 
terom@23:         'global' : this.options.queue.scope).remove(this);
terom@23:     this.state = 'finished';
terom@23:   },
terom@23:   event: function(eventName) {
terom@23:     if (this.options[eventName + 'Internal']) this.options[eventName + 'Internal'](this);
terom@23:     if (this.options[eventName]) this.options[eventName](this);
terom@23:   },
terom@23:   inspect: function() {
terom@23:     var data = $H();
terom@23:     for(property in this)
terom@23:       if (!Object.isFunction(this[property])) data.set(property, this[property]);
terom@23:     return '#<Effect:' + data.inspect() + ',options:' + $H(this.options).inspect() + '>';
terom@23:   }
terom@23: });
terom@23: 
terom@23: Effect.Parallel = Class.create(Effect.Base, {
terom@23:   initialize: function(effects) {
terom@23:     this.effects = effects || [];
terom@23:     this.start(arguments[1]);
terom@23:   },
terom@23:   update: function(position) {
terom@23:     this.effects.invoke('render', position);
terom@23:   },
terom@23:   finish: function(position) {
terom@23:     this.effects.each( function(effect) {
terom@23:       effect.render(1.0);
terom@23:       effect.cancel();
terom@23:       effect.event('beforeFinish');
terom@23:       if (effect.finish) effect.finish(position);
terom@23:       effect.event('afterFinish');
terom@23:     });
terom@23:   }
terom@23: });
terom@23: 
terom@23: Effect.Tween = Class.create(Effect.Base, {
terom@23:   initialize: function(object, from, to) {
terom@23:     object = Object.isString(object) ? $(object) : object;
terom@23:     var args = $A(arguments), method = args.last(), 
terom@23:       options = args.length == 5 ? args[3] : null;
terom@23:     this.method = Object.isFunction(method) ? method.bind(object) :
terom@23:       Object.isFunction(object[method]) ? object[method].bind(object) : 
terom@23:       function(value) { object[method] = value };
terom@23:     this.start(Object.extend({ from: from, to: to }, options || { }));
terom@23:   },
terom@23:   update: function(position) {
terom@23:     this.method(position);
terom@23:   }
terom@23: });
terom@23: 
terom@23: Effect.Event = Class.create(Effect.Base, {
terom@23:   initialize: function() {
terom@23:     this.start(Object.extend({ duration: 0 }, arguments[0] || { }));
terom@23:   },
terom@23:   update: Prototype.emptyFunction
terom@23: });
terom@23: 
terom@23: Effect.Opacity = Class.create(Effect.Base, {
terom@23:   initialize: function(element) {
terom@23:     this.element = $(element);
terom@23:     if (!this.element) throw(Effect._elementDoesNotExistError);
terom@23:     // make this work on IE on elements without 'layout'
terom@23:     if (Prototype.Browser.IE && (!this.element.currentStyle.hasLayout))
terom@23:       this.element.setStyle({zoom: 1});
terom@23:     var options = Object.extend({
terom@23:       from: this.element.getOpacity() || 0.0,
terom@23:       to:   1.0
terom@23:     }, arguments[1] || { });
terom@23:     this.start(options);
terom@23:   },
terom@23:   update: function(position) {
terom@23:     this.element.setOpacity(position);
terom@23:   }
terom@23: });
terom@23: 
terom@23: Effect.Move = Class.create(Effect.Base, {
terom@23:   initialize: function(element) {
terom@23:     this.element = $(element);
terom@23:     if (!this.element) throw(Effect._elementDoesNotExistError);
terom@23:     var options = Object.extend({
terom@23:       x:    0,
terom@23:       y:    0,
terom@23:       mode: 'relative'
terom@23:     }, arguments[1] || { });
terom@23:     this.start(options);
terom@23:   },
terom@23:   setup: function() {
terom@23:     this.element.makePositioned();
terom@23:     this.originalLeft = parseFloat(this.element.getStyle('left') || '0');
terom@23:     this.originalTop  = parseFloat(this.element.getStyle('top')  || '0');
terom@23:     if (this.options.mode == 'absolute') {
terom@23:       this.options.x = this.options.x - this.originalLeft;
terom@23:       this.options.y = this.options.y - this.originalTop;
terom@23:     }
terom@23:   },
terom@23:   update: function(position) {
terom@23:     this.element.setStyle({
terom@23:       left: (this.options.x  * position + this.originalLeft).round() + 'px',
terom@23:       top:  (this.options.y  * position + this.originalTop).round()  + 'px'
terom@23:     });
terom@23:   }
terom@23: });
terom@23: 
terom@23: // for backwards compatibility
terom@23: Effect.MoveBy = function(element, toTop, toLeft) {
terom@23:   return new Effect.Move(element, 
terom@23:     Object.extend({ x: toLeft, y: toTop }, arguments[3] || { }));
terom@23: };
terom@23: 
terom@23: Effect.Scale = Class.create(Effect.Base, {
terom@23:   initialize: function(element, percent) {
terom@23:     this.element = $(element);
terom@23:     if (!this.element) throw(Effect._elementDoesNotExistError);
terom@23:     var options = Object.extend({
terom@23:       scaleX: true,
terom@23:       scaleY: true,
terom@23:       scaleContent: true,
terom@23:       scaleFromCenter: false,
terom@23:       scaleMode: 'box',        // 'box' or 'contents' or { } with provided values
terom@23:       scaleFrom: 100.0,
terom@23:       scaleTo:   percent
terom@23:     }, arguments[2] || { });
terom@23:     this.start(options);
terom@23:   },
terom@23:   setup: function() {
terom@23:     this.restoreAfterFinish = this.options.restoreAfterFinish || false;
terom@23:     this.elementPositioning = this.element.getStyle('position');
terom@23:     
terom@23:     this.originalStyle = { };
terom@23:     ['top','left','width','height','fontSize'].each( function(k) {
terom@23:       this.originalStyle[k] = this.element.style[k];
terom@23:     }.bind(this));
terom@23:       
terom@23:     this.originalTop  = this.element.offsetTop;
terom@23:     this.originalLeft = this.element.offsetLeft;
terom@23:     
terom@23:     var fontSize = this.element.getStyle('font-size') || '100%';
terom@23:     ['em','px','%','pt'].each( function(fontSizeType) {
terom@23:       if (fontSize.indexOf(fontSizeType)>0) {
terom@23:         this.fontSize     = parseFloat(fontSize);
terom@23:         this.fontSizeType = fontSizeType;
terom@23:       }
terom@23:     }.bind(this));
terom@23:     
terom@23:     this.factor = (this.options.scaleTo - this.options.scaleFrom)/100;
terom@23:     
terom@23:     this.dims = null;
terom@23:     if (this.options.scaleMode=='box')
terom@23:       this.dims = [this.element.offsetHeight, this.element.offsetWidth];
terom@23:     if (/^content/.test(this.options.scaleMode))
terom@23:       this.dims = [this.element.scrollHeight, this.element.scrollWidth];
terom@23:     if (!this.dims)
terom@23:       this.dims = [this.options.scaleMode.originalHeight,
terom@23:                    this.options.scaleMode.originalWidth];
terom@23:   },
terom@23:   update: function(position) {
terom@23:     var currentScale = (this.options.scaleFrom/100.0) + (this.factor * position);
terom@23:     if (this.options.scaleContent && this.fontSize)
terom@23:       this.element.setStyle({fontSize: this.fontSize * currentScale + this.fontSizeType });
terom@23:     this.setDimensions(this.dims[0] * currentScale, this.dims[1] * currentScale);
terom@23:   },
terom@23:   finish: function(position) {
terom@23:     if (this.restoreAfterFinish) this.element.setStyle(this.originalStyle);
terom@23:   },
terom@23:   setDimensions: function(height, width) {
terom@23:     var d = { };
terom@23:     if (this.options.scaleX) d.width = width.round() + 'px';
terom@23:     if (this.options.scaleY) d.height = height.round() + 'px';
terom@23:     if (this.options.scaleFromCenter) {
terom@23:       var topd  = (height - this.dims[0])/2;
terom@23:       var leftd = (width  - this.dims[1])/2;
terom@23:       if (this.elementPositioning == 'absolute') {
terom@23:         if (this.options.scaleY) d.top = this.originalTop-topd + 'px';
terom@23:         if (this.options.scaleX) d.left = this.originalLeft-leftd + 'px';
terom@23:       } else {
terom@23:         if (this.options.scaleY) d.top = -topd + 'px';
terom@23:         if (this.options.scaleX) d.left = -leftd + 'px';
terom@23:       }
terom@23:     }
terom@23:     this.element.setStyle(d);
terom@23:   }
terom@23: });
terom@23: 
terom@23: Effect.Highlight = Class.create(Effect.Base, {
terom@23:   initialize: function(element) {
terom@23:     this.element = $(element);
terom@23:     if (!this.element) throw(Effect._elementDoesNotExistError);
terom@23:     var options = Object.extend({ startcolor: '#ffff99' }, arguments[1] || { });
terom@23:     this.start(options);
terom@23:   },
terom@23:   setup: function() {
terom@23:     // Prevent executing on elements not in the layout flow
terom@23:     if (this.element.getStyle('display')=='none') { this.cancel(); return; }
terom@23:     // Disable background image during the effect
terom@23:     this.oldStyle = { };
terom@23:     if (!this.options.keepBackgroundImage) {
terom@23:       this.oldStyle.backgroundImage = this.element.getStyle('background-image');
terom@23:       this.element.setStyle({backgroundImage: 'none'});
terom@23:     }
terom@23:     if (!this.options.endcolor)
terom@23:       this.options.endcolor = this.element.getStyle('background-color').parseColor('#ffffff');
terom@23:     if (!this.options.restorecolor)
terom@23:       this.options.restorecolor = this.element.getStyle('background-color');
terom@23:     // init color calculations
terom@23:     this._base  = $R(0,2).map(function(i){ return parseInt(this.options.startcolor.slice(i*2+1,i*2+3),16) }.bind(this));
terom@23:     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));
terom@23:   },
terom@23:   update: function(position) {
terom@23:     this.element.setStyle({backgroundColor: $R(0,2).inject('#',function(m,v,i){
terom@23:       return m+((this._base[i]+(this._delta[i]*position)).round().toColorPart()); }.bind(this)) });
terom@23:   },
terom@23:   finish: function() {
terom@23:     this.element.setStyle(Object.extend(this.oldStyle, {
terom@23:       backgroundColor: this.options.restorecolor
terom@23:     }));
terom@23:   }
terom@23: });
terom@23: 
terom@23: Effect.ScrollTo = function(element) {
terom@23:   var options = arguments[1] || { },
terom@23:     scrollOffsets = document.viewport.getScrollOffsets(),
terom@23:     elementOffsets = $(element).cumulativeOffset(),
terom@23:     max = (window.height || document.body.scrollHeight) - document.viewport.getHeight();  
terom@23: 
terom@23:   if (options.offset) elementOffsets[1] += options.offset;
terom@23: 
terom@23:   return new Effect.Tween(null,
terom@23:     scrollOffsets.top,
terom@23:     elementOffsets[1] > max ? max : elementOffsets[1],
terom@23:     options,
terom@23:     function(p){ scrollTo(scrollOffsets.left, p.round()) }
terom@23:   );
terom@23: };
terom@23: 
terom@23: /* ------------- combination effects ------------- */
terom@23: 
terom@23: Effect.Fade = function(element) {
terom@23:   element = $(element);
terom@23:   var oldOpacity = element.getInlineOpacity();
terom@23:   var options = Object.extend({
terom@23:     from: element.getOpacity() || 1.0,
terom@23:     to:   0.0,
terom@23:     afterFinishInternal: function(effect) { 
terom@23:       if (effect.options.to!=0) return;
terom@23:       effect.element.hide().setStyle({opacity: oldOpacity}); 
terom@23:     }
terom@23:   }, arguments[1] || { });
terom@23:   return new Effect.Opacity(element,options);
terom@23: };
terom@23: 
terom@23: Effect.Appear = function(element) {
terom@23:   element = $(element);
terom@23:   var options = Object.extend({
terom@23:   from: (element.getStyle('display') == 'none' ? 0.0 : element.getOpacity() || 0.0),
terom@23:   to:   1.0,
terom@23:   // force Safari to render floated elements properly
terom@23:   afterFinishInternal: function(effect) {
terom@23:     effect.element.forceRerendering();
terom@23:   },
terom@23:   beforeSetup: function(effect) {
terom@23:     effect.element.setOpacity(effect.options.from).show(); 
terom@23:   }}, arguments[1] || { });
terom@23:   return new Effect.Opacity(element,options);
terom@23: };
terom@23: 
terom@23: Effect.Puff = function(element) {
terom@23:   element = $(element);
terom@23:   var oldStyle = { 
terom@23:     opacity: element.getInlineOpacity(), 
terom@23:     position: element.getStyle('position'),
terom@23:     top:  element.style.top,
terom@23:     left: element.style.left,
terom@23:     width: element.style.width,
terom@23:     height: element.style.height
terom@23:   };
terom@23:   return new Effect.Parallel(
terom@23:    [ new Effect.Scale(element, 200, 
terom@23:       { sync: true, scaleFromCenter: true, scaleContent: true, restoreAfterFinish: true }), 
terom@23:      new Effect.Opacity(element, { sync: true, to: 0.0 } ) ], 
terom@23:      Object.extend({ duration: 1.0, 
terom@23:       beforeSetupInternal: function(effect) {
terom@23:         Position.absolutize(effect.effects[0].element)
terom@23:       },
terom@23:       afterFinishInternal: function(effect) {
terom@23:          effect.effects[0].element.hide().setStyle(oldStyle); }
terom@23:      }, arguments[1] || { })
terom@23:    );
terom@23: };
terom@23: 
terom@23: Effect.BlindUp = function(element) {
terom@23:   element = $(element);
terom@23:   element.makeClipping();
terom@23:   return new Effect.Scale(element, 0,
terom@23:     Object.extend({ scaleContent: false, 
terom@23:       scaleX: false, 
terom@23:       restoreAfterFinish: true,
terom@23:       afterFinishInternal: function(effect) {
terom@23:         effect.element.hide().undoClipping();
terom@23:       } 
terom@23:     }, arguments[1] || { })
terom@23:   );
terom@23: };
terom@23: 
terom@23: Effect.BlindDown = function(element) {
terom@23:   element = $(element);
terom@23:   var elementDimensions = element.getDimensions();
terom@23:   return new Effect.Scale(element, 100, Object.extend({ 
terom@23:     scaleContent: false, 
terom@23:     scaleX: false,
terom@23:     scaleFrom: 0,
terom@23:     scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
terom@23:     restoreAfterFinish: true,
terom@23:     afterSetup: function(effect) {
terom@23:       effect.element.makeClipping().setStyle({height: '0px'}).show(); 
terom@23:     },  
terom@23:     afterFinishInternal: function(effect) {
terom@23:       effect.element.undoClipping();
terom@23:     }
terom@23:   }, arguments[1] || { }));
terom@23: };
terom@23: 
terom@23: Effect.SwitchOff = function(element) {
terom@23:   element = $(element);
terom@23:   var oldOpacity = element.getInlineOpacity();
terom@23:   return new Effect.Appear(element, Object.extend({
terom@23:     duration: 0.4,
terom@23:     from: 0,
terom@23:     transition: Effect.Transitions.flicker,
terom@23:     afterFinishInternal: function(effect) {
terom@23:       new Effect.Scale(effect.element, 1, { 
terom@23:         duration: 0.3, scaleFromCenter: true,
terom@23:         scaleX: false, scaleContent: false, restoreAfterFinish: true,
terom@23:         beforeSetup: function(effect) { 
terom@23:           effect.element.makePositioned().makeClipping();
terom@23:         },
terom@23:         afterFinishInternal: function(effect) {
terom@23:           effect.element.hide().undoClipping().undoPositioned().setStyle({opacity: oldOpacity});
terom@23:         }
terom@23:       })
terom@23:     }
terom@23:   }, arguments[1] || { }));
terom@23: };
terom@23: 
terom@23: Effect.DropOut = function(element) {
terom@23:   element = $(element);
terom@23:   var oldStyle = {
terom@23:     top: element.getStyle('top'),
terom@23:     left: element.getStyle('left'),
terom@23:     opacity: element.getInlineOpacity() };
terom@23:   return new Effect.Parallel(
terom@23:     [ new Effect.Move(element, {x: 0, y: 100, sync: true }), 
terom@23:       new Effect.Opacity(element, { sync: true, to: 0.0 }) ],
terom@23:     Object.extend(
terom@23:       { duration: 0.5,
terom@23:         beforeSetup: function(effect) {
terom@23:           effect.effects[0].element.makePositioned(); 
terom@23:         },
terom@23:         afterFinishInternal: function(effect) {
terom@23:           effect.effects[0].element.hide().undoPositioned().setStyle(oldStyle);
terom@23:         } 
terom@23:       }, arguments[1] || { }));
terom@23: };
terom@23: 
terom@23: Effect.Shake = function(element) {
terom@23:   element = $(element);
terom@23:   var options = Object.extend({
terom@23:     distance: 20,
terom@23:     duration: 0.5
terom@23:   }, arguments[1] || {});
terom@23:   var distance = parseFloat(options.distance);
terom@23:   var split = parseFloat(options.duration) / 10.0;
terom@23:   var oldStyle = {
terom@23:     top: element.getStyle('top'),
terom@23:     left: element.getStyle('left') };
terom@23:     return new Effect.Move(element,
terom@23:       { x:  distance, y: 0, duration: split, afterFinishInternal: function(effect) {
terom@23:     new Effect.Move(effect.element,
terom@23:       { x: -distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
terom@23:     new Effect.Move(effect.element,
terom@23:       { x:  distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
terom@23:     new Effect.Move(effect.element,
terom@23:       { x: -distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
terom@23:     new Effect.Move(effect.element,
terom@23:       { x:  distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
terom@23:     new Effect.Move(effect.element,
terom@23:       { x: -distance, y: 0, duration: split, afterFinishInternal: function(effect) {
terom@23:         effect.element.undoPositioned().setStyle(oldStyle);
terom@23:   }}) }}) }}) }}) }}) }});
terom@23: };
terom@23: 
terom@23: Effect.SlideDown = function(element) {
terom@23:   element = $(element).cleanWhitespace();
terom@23:   // SlideDown need to have the content of the element wrapped in a container element with fixed height!
terom@23:   var oldInnerBottom = element.down().getStyle('bottom');
terom@23:   var elementDimensions = element.getDimensions();
terom@23:   return new Effect.Scale(element, 100, Object.extend({ 
terom@23:     scaleContent: false, 
terom@23:     scaleX: false, 
terom@23:     scaleFrom: window.opera ? 0 : 1,
terom@23:     scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
terom@23:     restoreAfterFinish: true,
terom@23:     afterSetup: function(effect) {
terom@23:       effect.element.makePositioned();
terom@23:       effect.element.down().makePositioned();
terom@23:       if (window.opera) effect.element.setStyle({top: ''});
terom@23:       effect.element.makeClipping().setStyle({height: '0px'}).show(); 
terom@23:     },
terom@23:     afterUpdateInternal: function(effect) {
terom@23:       effect.element.down().setStyle({bottom:
terom@23:         (effect.dims[0] - effect.element.clientHeight) + 'px' }); 
terom@23:     },
terom@23:     afterFinishInternal: function(effect) {
terom@23:       effect.element.undoClipping().undoPositioned();
terom@23:       effect.element.down().undoPositioned().setStyle({bottom: oldInnerBottom}); }
terom@23:     }, arguments[1] || { })
terom@23:   );
terom@23: };
terom@23: 
terom@23: Effect.SlideUp = function(element) {
terom@23:   element = $(element).cleanWhitespace();
terom@23:   var oldInnerBottom = element.down().getStyle('bottom');
terom@23:   var elementDimensions = element.getDimensions();
terom@23:   return new Effect.Scale(element, window.opera ? 0 : 1,
terom@23:    Object.extend({ scaleContent: false, 
terom@23:     scaleX: false, 
terom@23:     scaleMode: 'box',
terom@23:     scaleFrom: 100,
terom@23:     scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
terom@23:     restoreAfterFinish: true,
terom@23:     afterSetup: function(effect) {
terom@23:       effect.element.makePositioned();
terom@23:       effect.element.down().makePositioned();
terom@23:       if (window.opera) effect.element.setStyle({top: ''});
terom@23:       effect.element.makeClipping().show();
terom@23:     },  
terom@23:     afterUpdateInternal: function(effect) {
terom@23:       effect.element.down().setStyle({bottom:
terom@23:         (effect.dims[0] - effect.element.clientHeight) + 'px' });
terom@23:     },
terom@23:     afterFinishInternal: function(effect) {
terom@23:       effect.element.hide().undoClipping().undoPositioned();
terom@23:       effect.element.down().undoPositioned().setStyle({bottom: oldInnerBottom});
terom@23:     }
terom@23:    }, arguments[1] || { })
terom@23:   );
terom@23: };
terom@23: 
terom@23: // Bug in opera makes the TD containing this element expand for a instance after finish 
terom@23: Effect.Squish = function(element) {
terom@23:   return new Effect.Scale(element, window.opera ? 1 : 0, { 
terom@23:     restoreAfterFinish: true,
terom@23:     beforeSetup: function(effect) {
terom@23:       effect.element.makeClipping(); 
terom@23:     },  
terom@23:     afterFinishInternal: function(effect) {
terom@23:       effect.element.hide().undoClipping(); 
terom@23:     }
terom@23:   });
terom@23: };
terom@23: 
terom@23: Effect.Grow = function(element) {
terom@23:   element = $(element);
terom@23:   var options = Object.extend({
terom@23:     direction: 'center',
terom@23:     moveTransition: Effect.Transitions.sinoidal,
terom@23:     scaleTransition: Effect.Transitions.sinoidal,
terom@23:     opacityTransition: Effect.Transitions.full
terom@23:   }, arguments[1] || { });
terom@23:   var oldStyle = {
terom@23:     top: element.style.top,
terom@23:     left: element.style.left,
terom@23:     height: element.style.height,
terom@23:     width: element.style.width,
terom@23:     opacity: element.getInlineOpacity() };
terom@23: 
terom@23:   var dims = element.getDimensions();    
terom@23:   var initialMoveX, initialMoveY;
terom@23:   var moveX, moveY;
terom@23:   
terom@23:   switch (options.direction) {
terom@23:     case 'top-left':
terom@23:       initialMoveX = initialMoveY = moveX = moveY = 0; 
terom@23:       break;
terom@23:     case 'top-right':
terom@23:       initialMoveX = dims.width;
terom@23:       initialMoveY = moveY = 0;
terom@23:       moveX = -dims.width;
terom@23:       break;
terom@23:     case 'bottom-left':
terom@23:       initialMoveX = moveX = 0;
terom@23:       initialMoveY = dims.height;
terom@23:       moveY = -dims.height;
terom@23:       break;
terom@23:     case 'bottom-right':
terom@23:       initialMoveX = dims.width;
terom@23:       initialMoveY = dims.height;
terom@23:       moveX = -dims.width;
terom@23:       moveY = -dims.height;
terom@23:       break;
terom@23:     case 'center':
terom@23:       initialMoveX = dims.width / 2;
terom@23:       initialMoveY = dims.height / 2;
terom@23:       moveX = -dims.width / 2;
terom@23:       moveY = -dims.height / 2;
terom@23:       break;
terom@23:   }
terom@23:   
terom@23:   return new Effect.Move(element, {
terom@23:     x: initialMoveX,
terom@23:     y: initialMoveY,
terom@23:     duration: 0.01, 
terom@23:     beforeSetup: function(effect) {
terom@23:       effect.element.hide().makeClipping().makePositioned();
terom@23:     },
terom@23:     afterFinishInternal: function(effect) {
terom@23:       new Effect.Parallel(
terom@23:         [ new Effect.Opacity(effect.element, { sync: true, to: 1.0, from: 0.0, transition: options.opacityTransition }),
terom@23:           new Effect.Move(effect.element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition }),
terom@23:           new Effect.Scale(effect.element, 100, {
terom@23:             scaleMode: { originalHeight: dims.height, originalWidth: dims.width }, 
terom@23:             sync: true, scaleFrom: window.opera ? 1 : 0, transition: options.scaleTransition, restoreAfterFinish: true})
terom@23:         ], Object.extend({
terom@23:              beforeSetup: function(effect) {
terom@23:                effect.effects[0].element.setStyle({height: '0px'}).show(); 
terom@23:              },
terom@23:              afterFinishInternal: function(effect) {
terom@23:                effect.effects[0].element.undoClipping().undoPositioned().setStyle(oldStyle); 
terom@23:              }
terom@23:            }, options)
terom@23:       )
terom@23:     }
terom@23:   });
terom@23: };
terom@23: 
terom@23: Effect.Shrink = function(element) {
terom@23:   element = $(element);
terom@23:   var options = Object.extend({
terom@23:     direction: 'center',
terom@23:     moveTransition: Effect.Transitions.sinoidal,
terom@23:     scaleTransition: Effect.Transitions.sinoidal,
terom@23:     opacityTransition: Effect.Transitions.none
terom@23:   }, arguments[1] || { });
terom@23:   var oldStyle = {
terom@23:     top: element.style.top,
terom@23:     left: element.style.left,
terom@23:     height: element.style.height,
terom@23:     width: element.style.width,
terom@23:     opacity: element.getInlineOpacity() };
terom@23: 
terom@23:   var dims = element.getDimensions();
terom@23:   var moveX, moveY;
terom@23:   
terom@23:   switch (options.direction) {
terom@23:     case 'top-left':
terom@23:       moveX = moveY = 0;
terom@23:       break;
terom@23:     case 'top-right':
terom@23:       moveX = dims.width;
terom@23:       moveY = 0;
terom@23:       break;
terom@23:     case 'bottom-left':
terom@23:       moveX = 0;
terom@23:       moveY = dims.height;
terom@23:       break;
terom@23:     case 'bottom-right':
terom@23:       moveX = dims.width;
terom@23:       moveY = dims.height;
terom@23:       break;
terom@23:     case 'center':  
terom@23:       moveX = dims.width / 2;
terom@23:       moveY = dims.height / 2;
terom@23:       break;
terom@23:   }
terom@23:   
terom@23:   return new Effect.Parallel(
terom@23:     [ new Effect.Opacity(element, { sync: true, to: 0.0, from: 1.0, transition: options.opacityTransition }),
terom@23:       new Effect.Scale(element, window.opera ? 1 : 0, { sync: true, transition: options.scaleTransition, restoreAfterFinish: true}),
terom@23:       new Effect.Move(element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition })
terom@23:     ], Object.extend({            
terom@23:          beforeStartInternal: function(effect) {
terom@23:            effect.effects[0].element.makePositioned().makeClipping(); 
terom@23:          },
terom@23:          afterFinishInternal: function(effect) {
terom@23:            effect.effects[0].element.hide().undoClipping().undoPositioned().setStyle(oldStyle); }
terom@23:        }, options)
terom@23:   );
terom@23: };
terom@23: 
terom@23: Effect.Pulsate = function(element) {
terom@23:   element = $(element);
terom@23:   var options    = arguments[1] || { };
terom@23:   var oldOpacity = element.getInlineOpacity();
terom@23:   var transition = options.transition || Effect.Transitions.sinoidal;
terom@23:   var reverser   = function(pos){ return transition(1-Effect.Transitions.pulse(pos, options.pulses)) };
terom@23:   reverser.bind(transition);
terom@23:   return new Effect.Opacity(element, 
terom@23:     Object.extend(Object.extend({  duration: 2.0, from: 0,
terom@23:       afterFinishInternal: function(effect) { effect.element.setStyle({opacity: oldOpacity}); }
terom@23:     }, options), {transition: reverser}));
terom@23: };
terom@23: 
terom@23: Effect.Fold = function(element) {
terom@23:   element = $(element);
terom@23:   var oldStyle = {
terom@23:     top: element.style.top,
terom@23:     left: element.style.left,
terom@23:     width: element.style.width,
terom@23:     height: element.style.height };
terom@23:   element.makeClipping();
terom@23:   return new Effect.Scale(element, 5, Object.extend({   
terom@23:     scaleContent: false,
terom@23:     scaleX: false,
terom@23:     afterFinishInternal: function(effect) {
terom@23:     new Effect.Scale(element, 1, { 
terom@23:       scaleContent: false, 
terom@23:       scaleY: false,
terom@23:       afterFinishInternal: function(effect) {
terom@23:         effect.element.hide().undoClipping().setStyle(oldStyle);
terom@23:       } });
terom@23:   }}, arguments[1] || { }));
terom@23: };
terom@23: 
terom@23: Effect.Morph = Class.create(Effect.Base, {
terom@23:   initialize: function(element) {
terom@23:     this.element = $(element);
terom@23:     if (!this.element) throw(Effect._elementDoesNotExistError);
terom@23:     var options = Object.extend({
terom@23:       style: { }
terom@23:     }, arguments[1] || { });
terom@23:     
terom@23:     if (!Object.isString(options.style)) this.style = $H(options.style);
terom@23:     else {
terom@23:       if (options.style.include(':'))
terom@23:         this.style = options.style.parseStyle();
terom@23:       else {
terom@23:         this.element.addClassName(options.style);
terom@23:         this.style = $H(this.element.getStyles());
terom@23:         this.element.removeClassName(options.style);
terom@23:         var css = this.element.getStyles();
terom@23:         this.style = this.style.reject(function(style) {
terom@23:           return style.value == css[style.key];
terom@23:         });
terom@23:         options.afterFinishInternal = function(effect) {
terom@23:           effect.element.addClassName(effect.options.style);
terom@23:           effect.transforms.each(function(transform) {
terom@23:             effect.element.style[transform.style] = '';
terom@23:           });
terom@23:         }
terom@23:       }
terom@23:     }
terom@23:     this.start(options);
terom@23:   },
terom@23:   
terom@23:   setup: function(){
terom@23:     function parseColor(color){
terom@23:       if (!color || ['rgba(0, 0, 0, 0)','transparent'].include(color)) color = '#ffffff';
terom@23:       color = color.parseColor();
terom@23:       return $R(0,2).map(function(i){
terom@23:         return parseInt( color.slice(i*2+1,i*2+3), 16 ) 
terom@23:       });
terom@23:     }
terom@23:     this.transforms = this.style.map(function(pair){
terom@23:       var property = pair[0], value = pair[1], unit = null;
terom@23: 
terom@23:       if (value.parseColor('#zzzzzz') != '#zzzzzz') {
terom@23:         value = value.parseColor();
terom@23:         unit  = 'color';
terom@23:       } else if (property == 'opacity') {
terom@23:         value = parseFloat(value);
terom@23:         if (Prototype.Browser.IE && (!this.element.currentStyle.hasLayout))
terom@23:           this.element.setStyle({zoom: 1});
terom@23:       } else if (Element.CSS_LENGTH.test(value)) {
terom@23:           var components = value.match(/^([\+\-]?[0-9\.]+)(.*)$/);
terom@23:           value = parseFloat(components[1]);
terom@23:           unit = (components.length == 3) ? components[2] : null;
terom@23:       }
terom@23: 
terom@23:       var originalValue = this.element.getStyle(property);
terom@23:       return { 
terom@23:         style: property.camelize(), 
terom@23:         originalValue: unit=='color' ? parseColor(originalValue) : parseFloat(originalValue || 0), 
terom@23:         targetValue: unit=='color' ? parseColor(value) : value,
terom@23:         unit: unit
terom@23:       };
terom@23:     }.bind(this)).reject(function(transform){
terom@23:       return (
terom@23:         (transform.originalValue == transform.targetValue) ||
terom@23:         (
terom@23:           transform.unit != 'color' &&
terom@23:           (isNaN(transform.originalValue) || isNaN(transform.targetValue))
terom@23:         )
terom@23:       )
terom@23:     });
terom@23:   },
terom@23:   update: function(position) {
terom@23:     var style = { }, transform, i = this.transforms.length;
terom@23:     while(i--)
terom@23:       style[(transform = this.transforms[i]).style] = 
terom@23:         transform.unit=='color' ? '#'+
terom@23:           (Math.round(transform.originalValue[0]+
terom@23:             (transform.targetValue[0]-transform.originalValue[0])*position)).toColorPart() +
terom@23:           (Math.round(transform.originalValue[1]+
terom@23:             (transform.targetValue[1]-transform.originalValue[1])*position)).toColorPart() +
terom@23:           (Math.round(transform.originalValue[2]+
terom@23:             (transform.targetValue[2]-transform.originalValue[2])*position)).toColorPart() :
terom@23:         (transform.originalValue +
terom@23:           (transform.targetValue - transform.originalValue) * position).toFixed(3) + 
terom@23:             (transform.unit === null ? '' : transform.unit);
terom@23:     this.element.setStyle(style, true);
terom@23:   }
terom@23: });
terom@23: 
terom@23: Effect.Transform = Class.create({
terom@23:   initialize: function(tracks){
terom@23:     this.tracks  = [];
terom@23:     this.options = arguments[1] || { };
terom@23:     this.addTracks(tracks);
terom@23:   },
terom@23:   addTracks: function(tracks){
terom@23:     tracks.each(function(track){
terom@23:       track = $H(track);
terom@23:       var data = track.values().first();
terom@23:       this.tracks.push($H({
terom@23:         ids:     track.keys().first(),
terom@23:         effect:  Effect.Morph,
terom@23:         options: { style: data }
terom@23:       }));
terom@23:     }.bind(this));
terom@23:     return this;
terom@23:   },
terom@23:   play: function(){
terom@23:     return new Effect.Parallel(
terom@23:       this.tracks.map(function(track){
terom@23:         var ids = track.get('ids'), effect = track.get('effect'), options = track.get('options');
terom@23:         var elements = [$(ids) || $$(ids)].flatten();
terom@23:         return elements.map(function(e){ return new effect(e, Object.extend({ sync:true }, options)) });
terom@23:       }).flatten(),
terom@23:       this.options
terom@23:     );
terom@23:   }
terom@23: });
terom@23: 
terom@23: Element.CSS_PROPERTIES = $w(
terom@23:   'backgroundColor backgroundPosition borderBottomColor borderBottomStyle ' + 
terom@23:   'borderBottomWidth borderLeftColor borderLeftStyle borderLeftWidth ' +
terom@23:   'borderRightColor borderRightStyle borderRightWidth borderSpacing ' +
terom@23:   'borderTopColor borderTopStyle borderTopWidth bottom clip color ' +
terom@23:   'fontSize fontWeight height left letterSpacing lineHeight ' +
terom@23:   'marginBottom marginLeft marginRight marginTop markerOffset maxHeight '+
terom@23:   'maxWidth minHeight minWidth opacity outlineColor outlineOffset ' +
terom@23:   'outlineWidth paddingBottom paddingLeft paddingRight paddingTop ' +
terom@23:   'right textIndent top width wordSpacing zIndex');
terom@23:   
terom@23: Element.CSS_LENGTH = /^(([\+\-]?[0-9\.]+)(em|ex|px|in|cm|mm|pt|pc|\%))|0$/;
terom@23: 
terom@23: String.__parseStyleElement = document.createElement('div');
terom@23: String.prototype.parseStyle = function(){
terom@23:   var style, styleRules = $H();
terom@23:   if (Prototype.Browser.WebKit)
terom@23:     style = new Element('div',{style:this}).style;
terom@23:   else {
terom@23:     String.__parseStyleElement.innerHTML = '<div style="' + this + '"></div>';
terom@23:     style = String.__parseStyleElement.childNodes[0].style;
terom@23:   }
terom@23:   
terom@23:   Element.CSS_PROPERTIES.each(function(property){
terom@23:     if (style[property]) styleRules.set(property, style[property]); 
terom@23:   });
terom@23:   
terom@23:   if (Prototype.Browser.IE && this.include('opacity'))
terom@23:     styleRules.set('opacity', this.match(/opacity:\s*((?:0|1)?(?:\.\d*)?)/)[1]);
terom@23: 
terom@23:   return styleRules;
terom@23: };
terom@23: 
terom@23: if (document.defaultView && document.defaultView.getComputedStyle) {
terom@23:   Element.getStyles = function(element) {
terom@23:     var css = document.defaultView.getComputedStyle($(element), null);
terom@23:     return Element.CSS_PROPERTIES.inject({ }, function(styles, property) {
terom@23:       styles[property] = css[property];
terom@23:       return styles;
terom@23:     });
terom@23:   };
terom@23: } else {
terom@23:   Element.getStyles = function(element) {
terom@23:     element = $(element);
terom@23:     var css = element.currentStyle, styles;
terom@23:     styles = Element.CSS_PROPERTIES.inject({ }, function(results, property) {
terom@23:       results[property] = css[property];
terom@23:       return results;
terom@23:     });
terom@23:     if (!styles.opacity) styles.opacity = element.getOpacity();
terom@23:     return styles;
terom@23:   };
terom@23: };
terom@23: 
terom@23: Effect.Methods = {
terom@23:   morph: function(element, style) {
terom@23:     element = $(element);
terom@23:     new Effect.Morph(element, Object.extend({ style: style }, arguments[2] || { }));
terom@23:     return element;
terom@23:   },
terom@23:   visualEffect: function(element, effect, options) {
terom@23:     element = $(element)
terom@23:     var s = effect.dasherize().camelize(), klass = s.charAt(0).toUpperCase() + s.substring(1);
terom@23:     new Effect[klass](element, options);
terom@23:     return element;
terom@23:   },
terom@23:   highlight: function(element, options) {
terom@23:     element = $(element);
terom@23:     new Effect.Highlight(element, options);
terom@23:     return element;
terom@23:   }
terom@23: };
terom@23: 
terom@23: $w('fade appear grow shrink fold blindUp blindDown slideUp slideDown '+
terom@23:   'pulsate shake puff squish switchOff dropOut').each(
terom@23:   function(effect) { 
terom@23:     Effect.Methods[effect] = function(element, options){
terom@23:       element = $(element);
terom@23:       Effect[effect.charAt(0).toUpperCase() + effect.substring(1)](element, options);
terom@23:       return element;
terom@23:     }
terom@23:   }
terom@23: );
terom@23: 
terom@23: $w('getInlineOpacity forceRerendering setContentZoom collectTextNodes collectTextNodesIgnoreClass getStyles').each( 
terom@23:   function(f) { Effect.Methods[f] = Element[f]; }
terom@23: );
terom@23: 
terom@23: Element.addMethods(Effect.Methods);