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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(H,E,F){var G=Element.cumulativeScrollOffset(H);this.xcomp=E+G[0]-this.deltaX;this.ycomp=F+G[1]-this.deltaY;this.offset=Element.cumulativeOffset(H);return(this.ycomp>=this.offset[1]&&this.ycomp<this.offset[1]+H.offsetHeight&&this.xcomp>=this.offset[0]&&this.xcomp<this.offset[0]+H.offsetWidth)},overlap:function(D,C){if(!D){return 0}if(D=="vertical"){return((this.offset[1]+C.offsetHeight)-this.ycomp)/C.offsetHeight}if(D=="horizontal"){return((this.offset[0]+C.offsetWidth)-this.xcomp)/C.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,E,F){F=F||{};return Element.clonePosition(E,D,F)}};if(!document.getElementsByClassName){document.getElementsByClassName=function(D){function C(A){return A.blank()?null:"[contains(concat(' ', @class, ' '), ' "+A+" ')]"}D.getElementsByClassName=Prototype.BrowserFeatures.XPath?function(B,F){F=F.toString().strip();var A=/\s/.test(F)?$w(F).map(C).join(""):C(F);return 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