//MooTools More, <http://mootools.net/more>. Copyright (c) 2006-2008 Valerio Proietti, <http://mad4milk.net>, MIT Style License.

Fx.Elements=new Class({Extends:Fx.CSS,initialize:function(B,A){this.elements=this.subject=$$(B);this.parent(A);},compute:function(G,H,I){var C={};for(var D in G){var A=G[D],E=H[D],F=C[D]={};
for(var B in A){F[B]=this.parent(A[B],E[B],I);}}return C;},set:function(B){for(var C in B){var A=B[C];for(var D in A){this.render(this.elements[C],D,A[D],this.options.unit);
}}return this;},start:function(C){if(!this.check(arguments.callee,C)){return this;}var H={},I={};for(var D in C){var F=C[D],A=H[D]={},G=I[D]={};for(var B in F){var E=this.prepare(this.elements[D],B,F[B]);
A[B]=E.from;G[B]=E.to;}}return this.parent(H,I);}});var Group=new Class({initialize:function(){this.instances=Array.flatten(arguments);this.events={};this.checker={};
},addEvent:function(B,A){this.checker[B]=this.checker[B]||{};this.events[B]=this.events[B]||[];if(this.events[B].contains(A)){return false;}else{this.events[B].push(A);
}this.instances.each(function(C,D){C.addEvent(B,this.check.bind(this,[B,C,D]));},this);return this;},check:function(C,A,B){this.checker[C][B]=true;var D=this.instances.every(function(F,E){return this.checker[C][E]||false;
},this);if(!D){return ;}this.checker[C]={};this.events[C].each(function(E){E.call(this,this.instances,A);},this);}});