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a.id===b[1]},attrPresence:function(a,b){return Element.hasAttribute(a,b[1])},attr:function(c,b){var a=Element.readAttribute(c,b[1]);return Selector.operators[b[2]](a,b[3])}},handlers:{concat:function(d,a){for(var c=0,b;b=a[c];c++){d.push(b)}return d},mark:function(a){for(var c=0,b;b=a[c];c++){b._counted=true}return a},unmark:function(a){for(var c=0,b;b=a[c];c++){b._counted=undefined}return a},index:function(a,e,b){a._counted=true;if(e){for(var g=a.childNodes,d=g.length-1,f=1;d>=0;d--){var c=g[d];if(c.nodeType==1&&(!b||c._counted)){c.nodeIndex=f++}}}else{for(var d=0,f=1,g=a.childNodes;c=g[d];d++){if(c.nodeType==1&&(!b||c._counted)){c.nodeIndex=f++}}}},unique:function(e){if(e.length==0){return e}var c=[],b;for(var d=0,a=e.length;d<a;d++){if(!(b=e[d])._counted){b._counted=true;c.push(Element.extend(b))}}return Selector.handlers.unmark(c)},descendant:function(a){var c=Selector.handlers;for(var d=0,e=[],b;b=a[d];d++){c.concat(e,b.getElementsByTagName("*"))}return e},child:function(a){var 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c=$(b),f=Selector.handlers;if(!c){return[]}if(!h&&a==document){return[c]}if(h){if(d){if(d=="child"){for(var g=0,e;e=h[g];g++){if(c.parentNode==e){return[c]}}}else{if(d=="descendant"){for(var g=0,e;e=h[g];g++){if(Element.descendantOf(c,e)){return[c]}}}else{if(d=="adjacent"){for(var g=0,e;e=h[g];g++){if(Selector.handlers.previousElementSibling(c)==e){return[c]}}}else{h=f[d](h)}}}}for(var g=0,e;e=h[g];g++){if(e==c){return[c]}}return[]}return(c&&Element.descendantOf(c,a))?[c]:[]},className:function(d,a,c,b){if(d&&b){d=this[b](d)}return Selector.handlers.byClassName(d,a,c)},byClassName:function(g,h,d){if(!g){g=Selector.handlers.descendant([h])}var b=" "+d+" ";for(var e=0,f=[],c,a;c=g[e];e++){a=c.className;if(a.length==0){continue}if(a==d||(" "+a+" ").include(b)){f.push(c)}}return f},attrPresence:function(e,f,a){if(!e){e=f.getElementsByTagName("*")}var c=[];for(var d=0,b;b=e[d];d++){if(Element.hasAttribute(b,a)){c.push(b)}}return 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Object.extend(c,a)}}else{Event.prototype=Event.prototype||document.createEvent("HTMLEvents").__proto__;Object.extend(Event.prototype,a);return Prototype.K}})();Object.extend(Event,(function(){var c=Event.cache;function b(j){if(j._eventID){return j._eventID}arguments.callee.id=arguments.callee.id||1;return j._eventID=++arguments.callee.id}function g(j){if(j&&j.include(":")){return"dataavailable"}return j}function d(j){return c[j]=c[j]||{}}function h(j,l){var k=d(j);return k[l]=k[l]||[]}function f(k,l,j){var m=b(k);var n=h(m,l);if(n.pluck("handler").include(j)){return false}var o=function(p){if(!Event||!Event.extend||(p.eventName&&p.eventName!=l)){return false}Event.extend(p);j.call(k,p)};o.handler=j;n.push(o);return o}function e(m,l,k){var j=h(m,l);return j.find(function(n){return n.handler==k})}function a(m,l,k){var j=d(m);if(!j[l]){return false}j[l]=j[l].without(e(m,l,k))}function i(){for(var j in c){for(var k in 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Insertion={Before:function(a,b){return Element.insert(a,{before:b})},Top:function(a,b){return Element.insert(a,{top:b})},Bottom:function(a,b){return Element.insert(a,{bottom:b})},After:function(a,b){return Element.insert(a,{after:b})}};var $continue=new Error('"throw $continue" is deprecated, use "return" instead');var Position={includeScrollOffsets:false,prepare:function(){this.deltaX=window.pageXOffset||document.documentElement.scrollLeft||document.body.scrollLeft||0;this.deltaY=window.pageYOffset||document.documentElement.scrollTop||document.body.scrollTop||0},within:function(c,a,b){if(this.includeScrollOffsets){return this.withinIncludingScrolloffsets(c,a,b)}this.xcomp=a;this.ycomp=b;this.offset=Element.cumulativeOffset(c);return(b>=this.offset[1]&&b<this.offset[1]+c.offsetHeight&&a>=this.offset[0]&&a<this.offset[0]+c.offsetWidth)},withinIncludingScrolloffsets:function(d,a,b){var c=Element.cumulativeScrollOffset(d);this.xcomp=a+c[0]-this.deltaX;this.ycomp=b+c[1]-this.deltaY;this.offset=Element.cumulativeOffset(d);return(this.ycomp>=this.offset[1]&&this.ycomp<this.offset[1]+d.offsetHeight&&this.xcomp>=this.offset[0]&&this.xcomp<this.offset[0]+d.offsetWidth)},overlap:function(b,a){if(!b){return 0}if(b=="vertical"){return((this.offset[1]+a.offsetHeight)-this.ycomp)/a.offsetHeight}if(b=="horizontal"){return((this.offset[0]+a.offsetWidth)-this.xcomp)/a.offsetWidth}},cumulativeOffset:Element.Methods.cumulativeOffset,positionedOffset:Element.Methods.positionedOffset,absolutize:function(a){Position.prepare();return Element.absolutize(a)},relativize:function(a){Position.prepare();return Element.relativize(a)},realOffset:Element.Methods.cumulativeScrollOffset,offsetParent:Element.Methods.getOffsetParent,page:Element.Methods.viewportOffset,clone:function(c,b,a){a=a||{};return Element.clonePosition(b,c,a)}};if(!document.getElementsByClassName){document.getElementsByClassName=function(b){function a(c){return c.blank()?null:"[contains(concat(' ', @class, ' '), ' "+c+" ')]"}b.getElementsByClassName=Prototype.BrowserFeatures.XPath?function(e,c){c=c.toString().strip();var d=/\s/.test(c)?$w(c).map(a).join(""):a(c);return d?document._getElementsByXPath(".//*"+d,e):[]}:function(h,g){g=g.toString().strip();var f=[],e=(/\s/.test(g)?$w(g):null);if(!e&&!g){return f}var j=$(h).getElementsByTagName("*");g=" "+g+" ";for(var i=0,c,d;c=j[i];i++){if(c.className&&(d=" "+c.className+" ")&&(d.include(g)||(e&&e.all(function(k){return !k.toString().blank()&&d.include(" "+k+" ")})))){f.push(Element.extend(c))}}return f};return function(c,d){return $(d||document.body).getElementsByClassName(c)}}(Element.Methods)}Element.ClassNames=Class.create();Element.ClassNames.prototype={initialize:function(a){this.element=$(a)},_each:function(a){this.element.className.split(/\s+/).select(function(b){return b.length>0})._each(a)},set:function(a){this.element.className=a},add:function(a){if(this.include(a)){return}this.set($A(this).concat(a).join(" "))},remove:function(a){if(!this.include(a)){return}this.set($A(this).without(a).join(" "))},toString:function(){return $A(this).join(" ")}};Object.extend(Element.ClassNames.prototype,Enumerable);Element.addMethods();