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