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b="className",a="for",c=document.createElement("div");c.setAttribute(b,"x");if(c.className!=="x"){c.setAttribute("class","x");if(c.className==="x"){b="class"}}c=null;c=document.createElement("label");c.setAttribute(a,"x");if(c.htmlFor!=="x"){c.setAttribute("htmlFor","x");if(c.htmlFor==="x"){a="htmlFor"}}c=null;return{read:{names:{"class":b,className:b,"for":a,htmlFor:a},values:{_getAttr:function(d,e){return d.getAttribute(e)},_getAttr2:function(d,e){return d.getAttribute(e,2)},_getAttrNode:function(d,g){var e=d.getAttributeNode(g);return e?e.value:""},_getEv:(function(){var d=document.createElement("div"),g;d.onclick=Prototype.emptyFunction;var e=d.getAttribute("onclick");if(String(e).indexOf("{")>-1){g=function(h,j){j=h.getAttribute(j);if(!j){return null}j=j.toString();j=j.split("{")[1];j=j.split("}")[0];return j.strip()}}else{if(e===""){g=function(h,j){j=h.getAttribute(j);if(!j){return null}return j.strip()}}}d=null;return g})(),_flag:function(d,e){return $(d).hasAttribute(e)?e:null},style:function(d){return d.style.cssText.toLowerCase()},title:function(d){return d.title}}}}})();Element._attributeTranslations.write={names:Object.extend({cellpadding:"cellPadding",cellspacing:"cellSpacing"},Element._attributeTranslations.read.names),values:{checked:function(a,b){a.checked=!!b},style:function(a,b){a.style.cssText=b?b:""}}};Element._attributeTranslations.has={};$w("colSpan rowSpan vAlign dateTime accessKey tabIndex encType maxLength readOnly longDesc frameBorder").each(function(a){Element._attributeTranslations.write.names[a.toLowerCase()]=a;Element._attributeTranslations.has[a.toLowerCase()]=a});(function(a){Object.extend(a,{href:a._getAttr2,src:a._getAttr2,type:a._getAttr,action:a._getAttrNode,disabled:a._flag,checked:a._flag,readonly:a._flag,multiple:a._flag,onload:a._getEv,onunload:a._getEv,onclick:a._getEv,ondblclick:a._getEv,onmousedown:a._getEv,onmouseup:a._getEv,onmouseover:a._getEv,onmousemove:a._getEv,onmouseout:a._getEv,onfocus:a._getEv,onblur:a._getEv,onkeypress:a._getEv,onkeydown:a._getEv,onkeyup:a._getEv,onsubmit:a._getEv,onreset:a._getEv,onselect:a._getEv,onchange:a._getEv})})(Element._attributeTranslations.read.values);if(Prototype.BrowserFeatures.ElementExtensions){(function(){function a(e){var b=e.getElementsByTagName("*"),d=[];for(var c=0,g;g=b[c];c++){if(g.tagName!=="!"){d.push(g)}}return d}Element.Methods.down=function(c,d,b){c=$(c);if(arguments.length==1){return c.firstDescendant()}return Object.isNumber(d)?a(c)[d]:Element.select(c,d)[b||0]}})()}}else{if(Prototype.Browser.Gecko&&/rv:1\.8\.0/.test(navigator.userAgent)){Element.Methods.setOpacity=function(a,b){a=$(a);a.style.opacity=(b==1)?0.999999:(b==="")?"":(b<0.00001)?0:b;return a}}else{if(Prototype.Browser.WebKit){Element.Methods.setOpacity=function(a,b){a=$(a);a.style.opacity=(b==1||b==="")?"":(b<0.00001)?0:b;if(b==1){if(a.tagName.toUpperCase()=="IMG"&&a.width){a.width++;a.width--}else{try{var d=document.createTextNode(" ");a.appendChild(d);a.removeChild(d)}catch(c){}}}return a}}}}}if("outerHTML" in document.documentElement){Element.Methods.replace=function(c,e){c=$(c);if(e&&e.toElement){e=e.toElement()}if(Object.isElement(e)){c.parentNode.replaceChild(e,c);return c}e=Object.toHTML(e);var d=c.parentNode,b=d.tagName.toUpperCase();if(Element._insertionTranslations.tags[b]){var g=c.next(),a=Element._getContentFromAnonymousElement(b,e.stripScripts());d.removeChild(c);if(g){a.each(function(h){d.insertBefore(h,g)})}else{a.each(function(h){d.appendChild(h)})}}else{c.outerHTML=e.stripScripts()}e.evalScripts.bind(e).defer();return c}}Element._returnOffset=function(b,c){var a=[b,c];a.left=b;a.top=c;return a};Element._getContentFromAnonymousElement=function(e,d,g){var h=new Element("div"),c=Element._insertionTranslations.tags[e];var a=false;if(c){a=true}else{if(g){a=true;c=["","",0]}}if(a){h.innerHTML="&nbsp;"+c[0]+d+c[1];h.removeChild(h.firstChild);for(var b=c[2];b--;){h=h.firstChild}}else{h.innerHTML=d}return $A(h.childNodes)};Element._insertionTranslations={before:function(a,b){a.parentNode.insertBefore(b,a)},top:function(a,b){a.insertBefore(b,a.firstChild)},bottom:function(a,b){a.appendChild(b)},after:function(a,b){a.parentNode.insertBefore(b,a.nextSibling)},tags:{TABLE:["<table>","</table>",1],TBODY:["<table><tbody>","</tbody></table>",2],TR:["<table><tbody><tr>","</tr></tbody></table>",3],TD:["<table><tbody><tr><td>","</td></tr></tbody></table>",4],SELECT:["<select>","</select>",1]}};(function(){var a=Element._insertionTranslations.tags;Object.extend(a,{THEAD:a.TBODY,TFOOT:a.TBODY,TH:a.TD})})();Element.Methods.Simulated={hasAttribute:function(a,c){c=Element._attributeTranslations.has[c]||c;var b=$(a).getAttributeNode(c);return !!(b&&b.specified)}};Element.Methods.ByTag={};Object.extend(Element,Element.Methods);(function(a){if(!Prototype.BrowserFeatures.ElementExtensions&&a.__proto__){window.HTMLElement={};window.HTMLElement.prototype=a.__proto__;Prototype.BrowserFeatures.ElementExtensions=true}a=null})(document.createElement("div"));Element.extend=(function(){function c(h){if(typeof window.Element!="undefined"){var k=window.Element.prototype;if(k){var m="_"+(Math.random()+"").slice(2),j=document.createElement(h);k[m]="x";var l=(j[m]!=="x");delete k[m];j=null;return l}}return false}function b(j,h){for(var l in h){var k=h[l];if(Object.isFunction(k)&&!(l in j)){j[l]=k.methodize()}}}var d=c("object");if(Prototype.BrowserFeatures.SpecificElementExtensions){if(d){return function(j){if(j&&typeof j._extendedByPrototype=="undefined"){var h=j.tagName;if(h&&(/^(?:object|applet|embed)$/i.test(h))){b(j,Element.Methods);b(j,Element.Methods.Simulated);b(j,Element.Methods.ByTag[h.toUpperCase()])}}return j}}return Prototype.K}var a={},e=Element.Methods.ByTag;var g=Object.extend(function(k){if(!k||typeof k._extendedByPrototype!="undefined"||k.nodeType!=1||k==window){return k}var h=Object.clone(a),j=k.tagName.toUpperCase();if(e[j]){Object.extend(h,e[j])}b(k,h);k._extendedByPrototype=Prototype.emptyFunction;return k},{refresh:function(){if(!Prototype.BrowserFeatures.ElementExtensions){Object.extend(a,Element.Methods);Object.extend(a,Element.Methods.Simulated)}}});g.refresh();return g})();if(document.documentElement.hasAttribute){Element.hasAttribute=function(a,b){return a.hasAttribute(b)}}else{Element.hasAttribute=Element.Methods.Simulated.hasAttribute}Element.addMethods=function(c){var k=Prototype.BrowserFeatures,d=Element.Methods.ByTag;if(!c){Object.extend(Form,Form.Methods);Object.extend(Form.Element,Form.Element.Methods);Object.extend(Element.Methods.ByTag,{FORM:Object.clone(Form.Methods),INPUT:Object.clone(Form.Element.Methods),SELECT:Object.clone(Form.Element.Methods),TEXTAREA:Object.clone(Form.Element.Methods),BUTTON:Object.clone(Form.Element.Methods)})}if(arguments.length==2){var b=c;c=arguments[1]}if(!b){Object.extend(Element.Methods,c||{})}else{if(Object.isArray(b)){b.each(h)}else{h(b)}}function h(m){m=m.toUpperCase();if(!Element.Methods.ByTag[m]){Element.Methods.ByTag[m]={}}Object.extend(Element.Methods.ByTag[m],c)}function a(o,n,m){m=m||false;for(var q in o){var p=o[q];if(!Object.isFunction(p)){continue}if(!m||!(q in n)){n[q]=p.methodize()}}}function e(p){var m;var o={OPTGROUP:"OptGroup",TEXTAREA:"TextArea",P:"Paragraph",FIELDSET:"FieldSet",UL:"UList",OL:"OList",DL:"DList",DIR:"Directory",H1:"Heading",H2:"Heading",H3:"Heading",H4:"Heading",H5:"Heading",H6:"Heading",Q:"Quote",INS:"Mod",DEL:"Mod",A:"Anchor",IMG:"Image",CAPTION:"TableCaption",COL:"TableCol",COLGROUP:"TableCol",THEAD:"TableSection",TFOOT:"TableSection",TBODY:"TableSection",TR:"TableRow",TH:"TableCell",TD:"TableCell",FRAMESET:"FrameSet",IFRAME:"IFrame"};if(o[p]){m="HTML"+o[p]+"Element"}if(window[m]){return window[m]}m="HTML"+p+"Element";if(window[m]){return window[m]}m="HTML"+p.capitalize()+"Element";if(window[m]){return window[m]}var n=document.createElement(p),q=n.__proto__||n.constructor.prototype;n=null;return q}var j=window.HTMLElement?HTMLElement.prototype:Element.prototype;if(k.ElementExtensions){a(Element.Methods,j);a(Element.Methods.Simulated,j,true)}if(k.SpecificElementExtensions){for(var l in Element.Methods.ByTag){var g=e(l);if(Object.isUndefined(g)){continue}a(d[l],g.prototype)}}Object.extend(Element,Element.Methods);delete Element.ByTag;if(Element.extend.refresh){Element.extend.refresh()}Element.cache={}};document.viewport={getDimensions:function(){return{width:this.getWidth(),height:this.getHeight()}},getScrollOffsets:function(){return Element._returnOffset(window.pageXOffset||document.documentElement.scrollLeft||document.body.scrollLeft,window.pageYOffset||document.documentElement.scrollTop||document.body.scrollTop)}};(function(b){var h=Prototype.Browser,e=document,c,d={};function a(){if(h.WebKit&&!e.evaluate){return document}if(h.Opera&&window.parseFloat(window.opera.version())<9.5){return document.body}return document.documentElement}function g(j){if(!c){c=a()}d[j]="client"+j;b["get"+j]=function(){return c[d[j]]};return b["get"+j]()}b.getWidth=g.curry("Width");b.getHeight=g.curry("Height")})(document.viewport);Element.Storage={UID:1};Element.addMethods({getStorage:function(b){if(!(b=$(b))){return}var a;if(b===window){a=0}else{if(typeof b._prototypeUID==="undefined"){b._prototypeUID=Element.Storage.UID++}a=b._prototypeUID}if(!Element.Storage[a]){Element.Storage[a]=$H()}return Element.Storage[a]},store:function(b,a,c){if(!(b=$(b))){return}if(arguments.length===2){Element.getStorage(b).update(a)}else{Element.getStorage(b).set(a,c)}return b},retrieve:function(c,b,a){if(!(c=$(c))){return}var e=Element.getStorage(c),d=e.get(b);if(Object.isUndefined(d)){e.set(b,a);d=a}return d},clone:function(c,a){if(!(c=$(c))){return}var e=c.cloneNode(a);e._prototypeUID=void 0;if(a){var d=Element.select(e,"*"),b=d.length;while(b--){d[b]._prototypeUID=void 0}}return Element.extend(e)},purge:function(c){if(!(c=$(c))){return}var a=Element._purgeElement;a(c);var d=c.getElementsByTagName("*"),b=d.length;while(b--){a(d[b])}return null}});(function(){function j(x){var w=x.match(/^(\d+)%?$/i);if(!w){return null}return(Number(w[1])/100)}function q(H,I,x){var A=null;if(Object.isElement(H)){A=H;H=A.getStyle(I)}if(H===null){return null}if((/^(?:-)?\d+(\.\d+)?(px)?$/i).test(H)){return window.parseFloat(H)}var C=H.include("%"),y=(x===document.viewport);if(/\d/.test(H)&&A&&A.runtimeStyle&&!(C&&y)){var w=A.style.left,G=A.runtimeStyle.left;A.runtimeStyle.left=A.currentStyle.left;A.style.left=H||0;H=A.style.pixelLeft;A.style.left=w;A.runtimeStyle.left=G;return H}if(A&&C){x=x||A.parentNode;var z=j(H);var D=null;var B=A.getStyle("position");var F=I.include("left")||I.include("right")||I.include("width");var E=I.include("top")||I.include("bottom")||I.include("height");if(x===document.viewport){if(F){D=document.viewport.getWidth()}else{if(E){D=document.viewport.getHeight()}}}else{if(F){D=$(x).measure("width")}else{if(E){D=$(x).measure("height")}}}return(D===null)?0:D*z}return 0}function h(w){if(Object.isString(w)&&w.endsWith("px")){return w}return w+"px"}function l(x){var w=x;while(x&&x.parentNode){var y=x.getStyle("display");if(y==="none"){return false}x=$(x.parentNode)}return true}var d=Prototype.K;if("currentStyle" in document.documentElement){d=function(w){if(!w.currentStyle.hasLayout){w.style.zoom=1}return w}}function g(w){if(w.include("border")){w=w+"-width"}return w.camelize()}Element.Layout=Class.create(Hash,{initialize:function($super,x,w){$super();this.element=$(x);Element.Layout.PROPERTIES.each(function(y){this._set(y,null)},this);if(w){this._preComputing=true;this._begin();Element.Layout.PROPERTIES.each(this._compute,this);this._end();this._preComputing=false}},_set:function(x,w){return Hash.prototype.set.call(this,x,w)},set:function(x,w){throw"Properties of Element.Layout are read-only."},get:function($super,x){var w=$super(x);return w===null?this._compute(x):w},_begin:function(){if(this._prepared){return}var A=this.element;if(l(A)){this._prepared=true;return}var C={position:A.style.position||"",width:A.style.width||"",visibility:A.style.visibility||"",display:A.style.display||""};A.store("prototype_original_styles",C);var D=A.getStyle("position"),w=A.getStyle("width");if(w==="0px"||w===null){A.style.display="block";w=A.getStyle("width")}var x=(D==="fixed")?document.viewport:A.parentNode;A.setStyle({position:"absolute",visibility:"hidden",display:"block"});var y=A.getStyle("width");var z;if(w&&(y===w)){z=q(A,"width",x)}else{if(D==="absolute"||D==="fixed"){z=q(A,"width",x)}else{var E=A.parentNode,B=$(E).getLayout();z=B.get("width")-this.get("margin-left")-this.get("border-left")-this.get("padding-left")-this.get("padding-right")-this.get("border-right")-this.get("margin-right")}}A.setStyle({width:z+"px"});this._prepared=true},_end:function(){var x=this.element;var w=x.retrieve("prototype_original_styles");x.store("prototype_original_styles",null);x.setStyle(w);this._prepared=false},_compute:function(x){var w=Element.Layout.COMPUTATIONS;if(!(x in w)){throw"Property not found."}return this._set(x,w[x].call(this,this.element))},toObject:function(){var w=$A(arguments);var x=(w.length===0)?Element.Layout.PROPERTIES:w.join(" ").split(" ");var y={};x.each(function(z){if(!Element.Layout.PROPERTIES.include(z)){return}var A=this.get(z);if(A!=null){y[z]=A}},this);return y},toHash:function(){var w=this.toObject.apply(this,arguments);return new Hash(w)},toCSS:function(){var w=$A(arguments);var y=(w.length===0)?Element.Layout.PROPERTIES:w.join(" ").split(" ");var x={};y.each(function(z){if(!Element.Layout.PROPERTIES.include(z)){return}if(Element.Layout.COMPOSITE_PROPERTIES.include(z)){return}var A=this.get(z);if(A!=null){x[g(z)]=A+"px"}},this);return x},inspect:function(){return"#<Element.Layout>"}});Object.extend(Element.Layout,{PROPERTIES:$w("height width top left right bottom border-left border-right border-top border-bottom padding-left padding-right padding-top padding-bottom margin-top margin-bottom margin-left margin-right padding-box-width padding-box-height border-box-width border-box-height margin-box-width margin-box-height"),COMPOSITE_PROPERTIES:$w("padding-box-width padding-box-height margin-box-width margin-box-height border-box-width border-box-height"),COMPUTATIONS:{height:function(y){if(!this._preComputing){this._begin()}var w=this.get("border-box-height");if(w<=0){if(!this._preComputing){this._end()}return 0}var z=this.get("border-top"),x=this.get("border-bottom");var B=this.get("padding-top"),A=this.get("padding-bottom");if(!this._preComputing){this._end()}return w-z-x-B-A},width:function(y){if(!this._preComputing){this._begin()}var x=this.get("border-box-width");if(x<=0){if(!this._preComputing){this._end()}return 0}var B=this.get("border-left"),w=this.get("border-right");var z=this.get("padding-left"),A=this.get("padding-right");if(!this._preComputing){this._end()}return x-B-w-z-A},"padding-box-height":function(x){var w=this.get("height"),z=this.get("padding-top"),y=this.get("padding-bottom");return w+z+y},"padding-box-width":function(w){var x=this.get("width"),y=this.get("padding-left"),z=this.get("padding-right");return x+y+z},"border-box-height":function(x){if(!this._preComputing){this._begin()}var w=x.offsetHeight;if(!this._preComputing){this._end()}return w},"border-box-width":function(w){if(!this._preComputing){this._begin()}var x=w.offsetWidth;if(!this._preComputing){this._end()}return x},"margin-box-height":function(x){var w=this.get("border-box-height"),y=this.get("margin-top"),z=this.get("margin-bottom");if(w<=0){return 0}return w+y+z},"margin-box-width":function(y){var x=this.get("border-box-width"),z=this.get("margin-left"),w=this.get("margin-right");if(x<=0){return 0}return x+z+w},top:function(w){var x=w.positionedOffset();return x.top},bottom:function(w){var z=w.positionedOffset(),x=w.getOffsetParent(),y=x.measure("height");var A=this.get("border-box-height");return y-A-z.top},left:function(w){var x=w.positionedOffset();return x.left},right:function(y){var A=y.positionedOffset(),z=y.getOffsetParent(),w=z.measure("width");var x=this.get("border-box-width");return w-x-A.left},"padding-top":function(w){return q(w,"paddingTop")},"padding-bottom":function(w){return q(w,"paddingBottom")},"padding-left":function(w){return q(w,"paddingLeft")},"padding-right":function(w){return q(w,"paddingRight")},"border-top":function(w){return q(w,"borderTopWidth")},"border-bottom":function(w){return q(w,"borderBottomWidth")},"border-left":function(w){return q(w,"borderLeftWidth")},"border-right":function(w){return q(w,"borderRightWidth")},"margin-top":function(w){return q(w,"marginTop")},"margin-bottom":function(w){return q(w,"marginBottom")},"margin-left":function(w){return q(w,"marginLeft")},"margin-right":function(w){return q(w,"marginRight")}}});if("getBoundingClientRect" in document.documentElement){Object.extend(Element.Layout.COMPUTATIONS,{right:function(x){var y=d(x.getOffsetParent());var z=x.getBoundingClientRect(),w=y.getBoundingClientRect();return(w.right-z.right).round()},bottom:function(x){var y=d(x.getOffsetParent());var z=x.getBoundingClientRect(),w=y.getBoundingClientRect();return(w.bottom-z.bottom).round()}})}Element.Offset=Class.create({initialize:function(x,w){this.left=x.round();this.top=w.round();this[0]=this.left;this[1]=this.top},relativeTo:function(w){return new Element.Offset(this.left-w.left,this.top-w.top)},inspect:function(){return"#<Element.Offset left: #{left} top: #{top}>".interpolate(this)},toString:function(){return"[#{left}, #{top}]".interpolate(this)},toArray:function(){return[this.left,this.top]}});function t(x,w){return new Element.Layout(x,w)}function b(w,x){return $(w).getLayout().get(x)}function p(x){x=$(x);var 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