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

Fx.Scroll=new Class({Extends:Fx,options:{offset:{x:0,y:0},wheelStops:true},initialize:function(B,A){this.element=this.subject=$(B);this.parent(A);var D=this.cancel.bind(this,false);
if($type(this.element)!="element"){this.element=$(this.element.getDocument().body);}var C=this.element;if(this.options.wheelStops){this.addEvent("start",function(){C.addEvent("mousewheel",D);
},true);this.addEvent("complete",function(){C.removeEvent("mousewheel",D);},true);}},set:function(){var A=Array.flatten(arguments);this.element.scrollTo(A[0],A[1]);
},compute:function(E,D,C){var B=[];var A=2;A.times(function(F){B.push(Fx.compute(E[F],D[F],C));});return B;},start:function(C,H){if(!this.check(arguments.callee,C,H)){return this;
}var E=this.element.getSize(),F=this.element.getScrollSize();var B=this.element.getScroll(),D={x:C,y:H};for(var G in D){var A=F[G]-E[G];if($chk(D[G])){D[G]=($type(D[G])=="number")?D[G].limit(0,A):A;
}else{D[G]=B[G];}D[G]+=this.options.offset[G];}return this.parent([B.x,B.y],[D.x,D.y]);},toTop:function(){return this.start(false,0);},toLeft:function(){return this.start(0,false);
},toRight:function(){return this.start("right",false);},toBottom:function(){return this.start(false,"bottom");},toElement:function(B){var A=$(B).getPosition(this.element);
return this.start(A.x,A.y);}});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);}});