Fx.CSS=new Class({Extends:Fx,prepare:function(element,property,values){values=$splat(values);var values1=values[1];if(!$chk(values1)){values[1]=values[0];values[0]=element.getStyle(property);}
var parsed=values.map(this.parse);return{from:parsed[0],to:parsed[1]};},parse:function(value){value=$lambda(value)();value=(typeof value=='string')?value.split(' '):$splat(value);return value.map(function(val){val=String(val);var found=false;Fx.CSS.Parsers.each(function(parser,key){if(found)return;var parsed=parser.parse(val);if($chk(parsed))found={value:parsed,parser:parser};});found=found||{value:val,parser:Fx.CSS.Parsers.String};return found;});},compute:function(from,to,delta){var computed=[];(Math.min(from.length,to.length)).times(function(i){computed.push({value:from[i].parser.compute(from[i].value,to[i].value,delta),parser:from[i].parser});});computed.$family={name:'fx:css:value'};return computed;},serve:function(value,unit){if($type(value)!='fx:css:value')value=this.parse(value);var returned=[];value.each(function(bit){returned=returned.concat(bit.parser.serve(bit.value,unit));});return returned;},render:function(element,property,value,unit){element.setStyle(property,this.serve(value,unit));},search:function(selector){if(Fx.CSS.Cache[selector])return Fx.CSS.Cache[selector];var to={};Array.each(document.styleSheets,function(sheet,j){var href=sheet.href;if(href&&href.contains('://')&&!href.contains(document.domain))return;var rules=sheet.rules||sheet.cssRules;Array.each(rules,function(rule,i){if(!rule.style)return;var selectorText=(rule.selectorText)?rule.selectorText.replace(/^\w+/,function(m){return m.toLowerCase();}):null;if(!selectorText||!selectorText.test('^'+selector+'$'))return;Element.Styles.each(function(value,style){if(!rule.style[style]||Element.ShortStyles[style])return;value=String(rule.style[style]);to[style]=(value.test(/^rgb/))?value.rgbToHex():value;});});});return Fx.CSS.Cache[selector]=to;}});Fx.CSS.Cache={};Fx.CSS.Parsers=new Hash({Color:{parse:function(value){if(value.match(/^#[0-9a-f]{3,6}$/i))return value.hexToRgb(true);return((value=value.match(/(\d+),\s*(\d+),\s*(\d+)/)))?[value[1],value[2],value[3]]:false;},compute:function(from,to,delta){return from.map(function(value,i){return Math.round(Fx.compute(from[i],to[i],delta));});},serve:function(value){return value.map(Number);}},Number:{parse:parseFloat,compute:Fx.compute,serve:function(value,unit){return(unit)?value+unit:value;}},String:{parse:$lambda(false),compute:$arguments(1),serve:$arguments(0)}});