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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(d,e,f){if(this.includeScrollOffsets){return this.withinIncludingScrolloffsets(d,e,f)}this.xcomp=e;this.ycomp=f;this.offset=Element.cumulativeOffset(d);return(f>=this.offset[1]&&f<this.offset[1]+d.offsetHeight&&e>=this.offset[0]&&e<this.offset[0]+d.offsetWidth)},withinIncludingScrolloffsets:function(e,f,g){var h=Element.cumulativeScrollOffset(e);this.xcomp=f+h[0]-this.deltaX;this.ycomp=g+h[1]-this.deltaY;this.offset=Element.cumulativeOffset(e);return(this.ycomp>=this.offset[1]&&this.ycomp<this.offset[1]+e.offsetHeight&&this.xcomp>=this.offset[0]&&this.xcomp<this.offset[0]+e.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(d,f,e){e=e||{};return Element.clonePosition(f,d,e)}};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)?$w(a).map(d).join(""):d(a);return b?document._getElementsByXPath(".//*"+b,f):[]}:function(n,m){m=m.toString().strip();var l=[],i=(/\s/.test(m)?$w(m):null);if(!i&&!m){return l}var p=$(n).getElementsByTagName("*");m=" "+m+" ";for(var o=0,a,b;a=p[o];o++){if(a.className&&(b=" "+a.className+" ")&&(b.include(m)||(i&&i.all(function(e){return !e.toString().blank()&&b.include(" "+e+" ")})))){l.push(Element.extend(a))}}return l};return function(a,b){return $(b||document.body).getElementsByClassName(a)}}(Element.Methods)}Element.ClassNames=Class.create();Element.ClassNames.prototype={initialize:function(b){this.element=$(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(" 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