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true},startTimer:function(){if(this.timer)return false;this.time=$time()-this.time;this.timer=this.step.periodical(Math.round(1e3/this.options.fps),this);return true}});Fx.compute=function(a,c,b){return (c-a)*b+a};Fx.Durations={"short":250,normal:500,"long":1e3};Fx.CSS=new Class({Extends:Fx,prepare:function(d,e,a){a=$splat(a);var c=a[1];if(!$chk(c)){a[1]=a[0];a[0]=d.getStyle(e)}var b=a.map(this.parse);return {from:b[0],to:b[1]}},parse:function(a){a=$lambda(a)();a=typeof a=="string"?a.split(" "):$splat(a);return a.map(function(b){b=String(b);var a=false;Fx.CSS.Parsers.each(function(d){if(a)return;var c=d.parse(b);if($chk(c))a={value:c,parser:d}});a=a||{value:b,parser:Fx.CSS.Parsers.String};return a})},compute:function(a,c,d){var b=[];Math.min(a.length,c.length).times(function(e){b.push({value:a[e].parser.compute(a[e].value,c[e].value,d),parser:a[e].parser})});b.$family={name:"fx:css:value"};return b},serve:function(a,c){if($type(a)!="fx:css:value")a=this.parse(a);var b=[];a.each(function(a){b=b.concat(a.parser.serve(a.value,c))});return b},render:function(a,d,c,b){a.setStyle(d,this.serve(c,b))},search:function(a){if(Fx.CSS.Cache[a])return Fx.CSS.Cache[a];var b={};Array.each(document.styleSheets,function(d){var c=d.href;if(c&&c.contains("://")&&!c.contains(document.domain))return;var e=d.rules||d.cssRules;Array.each(e,function(c){if(!c.style)return;var d=c.selectorText?c.selectorText.replace(/^\w+/,function(a){return a.toLowerCase()}):null;if(!d||!d.test("^"+a+"$"))return;Element.Styles.each(function(d,a){if(!c.style[a]||Element.ShortStyles[a])return;d=String(c.style[a]);b[a]=d.test(/^rgb/)?d.rgbToHex():d})})});return Fx.CSS.Cache[a]=b}});Fx.CSS.Cache={};Fx.CSS.Parsers=new Hash({Color:{parse:function(a){if(a.match(/^#[0-9a-f]{3,6}$/i))return a.hexToRgb(true);return (a=a.match(/(\d+),\s*(\d+),\s*(\d+)/))?[a[1],a[2],a[3]]:false},compute:function(a,c,b){return a.map(function(e,d){return Math.round(Fx.compute(a[d],c[d],b))})},serve:function(a){return a.map(Number)}},Number:{parse:parseFloat,compute:Fx.compute,serve:function(b,a){return a?b+a:b}},String:{parse:$lambda(false),compute:$arguments(1),serve:$arguments(0)}});Fx.Tween=new Class({Extends:Fx.CSS,initialize:function(b,a){this.element=this.subject=$(b);this.parent(a)},"set":function(a,b){if(arguments.length==1){b=a;a=this.property||this.options.property}this.render(this.element,a,b,this.options.unit);return this},start:function(c,e,d){if(!this.check(arguments.callee,c,e,d))return this;var b=Array.flatten(arguments);this.property=this.options.property||b.shift();var a=this.prepare(this.element,this.property,b);return this.parent(a.from,a.to)}});Element.Properties.tween={"set":function(b){var a=this.retrieve("tween");if(a)a.cancel();return this.eliminate("tween").store("tween:options",$extend({link:"cancel"},b))},"get":function(a){if(a||!this.retrieve("tween")){if(a||!this.retrieve("tween:options"))this.set("tween",a);this.store("tween",new Fx.Tween(this,this.retrieve("tween:options")))}return this.retrieve("tween")}};Element.implement({tween:function(){this.get("tween").start(arguments);return this},fade:function(c){var b=this.get("tween"),a="opacity",d;c=$pick(c,"toggle");switch(c){case "in":b.start(a,1);break;case "out":b.start(a,0);break;case "show":b.set(a,1);break;case "hide":b.set(a,0);break;case "toggle":var e=this.retrieve("fade:flag",this.get("opacity")==1);b.start(a,e?0:1);this.store("fade:flag",!e);d=true;break;default:b.start(a,arguments)}if(!d)this.eliminate("fade:flag");return this},highlight:function(c,a){if(!a){a=this.retrieve("highlight:original",this.getStyle("background-color"));a=a=="transparent"?"#fff":a}var b=this.get("tween");b.start("background-color",c||"#ffff88",a).chain(function(){this.setStyle("background-color",this.retrieve("highlight:original"));b.callChain()}.bind(this));return this}});Fx.Morph=new Class({Extends:Fx.CSS,initialize:function(b,a){this.element=this.subject=$(b);this.parent(a)},"set":function(a){if(typeof a=="string")a=this.search(a);for(var b in a)this.render(this.element,b,a[b],this.options.unit);return this},compute:function(c,e,d){var b={};for(var a in c)b[a]=this.parent(c[a],e[a],d);return b},start:function(a){if(!this.check(arguments.callee,a))return this;if(typeof a=="string")a=this.search(a);var e={},d={};for(var b in a){var c=this.prepare(this.element,b,a[b]);e[b]=c.from;d[b]=c.to}return this.parent(e,d)}});Element.Properties.morph={"set":function(b){var a=this.retrieve("morph");if(a)a.cancel();return this.eliminate("morph").store("morph:options",$extend({link:"cancel"},b))},"get":function(a){if(a||!this.retrieve("morph")){if(a||!this.retrieve("morph:options"))this.set("morph",a);this.store("morph",new Fx.Morph(this,this.retrieve("morph:options")))}return this.retrieve("morph")}};Element.implement({morph:function(a){this.get("morph").start(a);return this}})