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Insertion={Before:function(D,C){return Element.insert(D,{before:C})},Top:function(D,C){return Element.insert(D,{top:C})},Bottom:function(D,C){return Element.insert(D,{bottom:C})},After:function(D,C){return Element.insert(D,{after:C})}};var $continue=new Error('"throw $continue" is deprecated, use "return" instead');var Position={includeScrollOffsets:false,prepare:function(){this.deltaX=window.pageXOffset||document.documentElement.scrollLeft||document.body.scrollLeft||0;this.deltaY=window.pageYOffset||document.documentElement.scrollTop||document.body.scrollTop||0},within:function(F,D,E){if(this.includeScrollOffsets){return this.withinIncludingScrolloffsets(F,D,E)}this.xcomp=D;this.ycomp=E;this.offset=Element.cumulativeOffset(F);return(E>=this.offset[1]&&E<this.offset[1]+F.offsetHeight&&D>=this.offset[0]&&D<this.offset[0]+F.offsetWidth)},withinIncludingScrolloffsets:function(G,H,E){var F=Element.cumulativeScrollOffset(G);this.xcomp=H+F[0]-this.deltaX;this.ycomp=E+F[1]-this.deltaY;this.offset=Element.cumulativeOffset(G);return(this.ycomp>=this.offset[1]&&this.ycomp<this.offset[1]+G.offsetHeight&&this.xcomp>=this.offset[0]&&this.xcomp<this.offset[0]+G.offsetWidth)},overlap:function(C,D){if(!C){return 0}if(C=="vertical"){return((this.offset[1]+D.offsetHeight)-this.ycomp)/D.offsetHeight}if(C=="horizontal"){return((this.offset[0]+D.offsetWidth)-this.xcomp)/D.offsetWidth}},cumulativeOffset:Element.Methods.cumulativeOffset,positionedOffset:Element.Methods.positionedOffset,absolutize:function(B){Position.prepare();return Element.absolutize(B)},relativize:function(B){Position.prepare();return Element.relativize(B)},realOffset:Element.Methods.cumulativeScrollOffset,offsetParent:Element.Methods.getOffsetParent,page:Element.Methods.viewportOffset,clone:function(F,E,D){D=D||{};return Element.clonePosition(E,F,D)}};if(!document.getElementsByClassName){document.getElementsByClassName=function(C){function D(A){return A.blank()?null:"[contains(concat(' ', @class, ' '), ' "+A+" ')]"}C.getElementsByClassName=Prototype.BrowserFeatures.XPath?function(F,A){A=A.toString().strip();var B=/\s/.test(A)?$w(A).map(D).join(""):D(A);return B?document._getElementsByXPath(".//*"+B,F):[]}:function(K,L){L=L.toString().strip();var O=[],N=(/\s/.test(L)?$w(L):null);if(!N&&!L){return O}var P=$(K).getElementsByTagName("*");L=" "+L+" ";for(var M=0,A,B;A=P[M];M++){if(A.className&&(B=" "+A.className+" ")&&(B.include(L)||(N&&N.all(function(E){return !E.toString().blank()&&B.include(" "+E+" ")})))){O.push(Element.extend(A))}}return O};return function(B,A){return $(A||document.body).getElementsByClassName(B)}}(Element.Methods)}Element.ClassNames=Class.create();Element.ClassNames.prototype={initialize:function(B){this.element=$(B)},_each:function(B){this.element.className.split(/\s+/).select(function(A){return A.length>0})._each(B)},set:function(B){this.element.className=B},add:function(B){if(this.include(B)){return }this.set($A(this).concat(B).join(" "))},remove:function(B){if(!this.include(B)){return }this.set($A(this).without(B).join(" "))},toString:function(){return $A(this).join(" ")}};Object.extend(Element.ClassNames.prototype,Enumerable);Element.addMethods();