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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,F){var E=D.getAttributeNode(F);return E?E.value:""},_getEv:(function(){var D=document.createElement("div"),F;D.onclick=Prototype.emptyFunction;var E=D.getAttribute("onclick");if(String(E).indexOf("{")>-1){F=function(G,H){H=G.getAttribute(H);if(!H){return null}H=H.toString();H=H.split("{")[1];H=H.split("}")[0];return H.strip()}}else{if(E===""){F=function(G,H){H=G.getAttribute(H);if(!H){return null}return H.strip()}}}D=null;return F})(),_flag:function(D,E){return 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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 F=C.next(),A=Element._getContentFromAnonymousElement(B,E.stripScripts());D.removeChild(C);if(F){A.each(function(G){D.insertBefore(G,F)})}else{A.each(function(G){D.appendChild(G)})}}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,F){var G=new Element("div"),C=Element._insertionTranslations.tags[E];var A=false;if(C){A=true}else{if(F){A=true;C=["","",0]}}if(A){G.innerHTML="&nbsp;"+C[0]+D+C[1];G.removeChild(G.firstChild);for(var B=C[2];B--;){G=G.firstChild}}else{G.innerHTML=D}return $A(G.childNodes)};Element._insertionTranslations={before:function(A,B){A.parentNode.insertBefore(B,A)},top:function(A,B){A.insertBefore(B,A.firstChild)},bottom:function(A,B){A.appendChild(B)},after:function(A,B){A.parentNode.insertBefore(B,A.nextSibling)},tags:{TABLE:["<table>","</table>",1],TBODY:["<table><tbody>","</tbody></table>",2],TR:["<table><tbody><tr>","</tr></tbody></table>",3],TD:["<table><tbody><tr><td>","</td></tr></tbody></table>",4],SELECT:["<select>","</select>",1]}};(function(){var A=Element._insertionTranslations.tags;Object.extend(A,{THEAD:A.TBODY,TFOOT:A.TBODY,TH:A.TD})})();Element.Methods.Simulated={hasAttribute:function(A,C){C=Element._attributeTranslations.has[C]||C;var B=$(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(G){if(typeof window.Element!="undefined"){var I=window.Element.prototype;if(I){var K="_"+(Math.random()+"").slice(2),H=document.createElement(G);I[K]="x";var J=(H[K]!=="x");delete I[K];H=null;return J}}return false}function B(H,G){for(var J in G){var I=G[J];if(Object.isFunction(I)&&!(J in H)){H[J]=I.methodize()}}}var D=C("object");if(Prototype.BrowserFeatures.SpecificElementExtensions){if(D){return function(H){if(H&&typeof H._extendedByPrototype=="undefined"){var G=H.tagName;if(G&&(/^(?:object|applet|embed)$/i.test(G))){B(H,Element.Methods);B(H,Element.Methods.Simulated);B(H,Element.Methods.ByTag[G.toUpperCase()])}}return H}}return 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J=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(F){F=F.toUpperCase();if(!Element.Methods.ByTag[F]){Element.Methods.ByTag[F]={}}Object.extend(Element.Methods.ByTag[F],C)}function A(M,L,F){F=F||false;for(var O in M){var N=M[O];if(!Object.isFunction(N)){continue}if(!F||!(O in L)){L[O]=N.methodize()}}}function E(N){var F;var M={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(M[N]){F="HTML"+M[N]+"Element"}if(window[F]){return window[F]}F="HTML"+N+"Element";if(window[F]){return window[F]}F="HTML"+N.capitalize()+"Element";if(window[F]){return window[F]}var L=document.createElement(N),O=L.__proto__||L.constructor.prototype;L=null;return O}var I=window.HTMLElement?HTMLElement.prototype:Element.prototype;if(J.ElementExtensions){A(Element.Methods,I);A(Element.Methods.Simulated,I,true)}if(J.SpecificElementExtensions){for(var K in Element.Methods.ByTag){var 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V=(b==="fixed")?document.viewport:Y.parentNode;Y.setStyle({position:"absolute",visibility:"hidden",display:"block"});var W=Y.getStyle("width");var X;if(U&&(W===U)){X=O(Y,"width",V)}else{if(b==="absolute"||b==="fixed"){X=O(Y,"width",V)}else{var c=Y.parentNode,Z=$(c).getLayout();X=Z.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")}}Y.setStyle({width:X+"px"});this._prepared=true},_end:function(){var V=this.element;var U=V.retrieve("prototype_original_styles");V.store("prototype_original_styles",null);V.setStyle(U);this._prepared=false},_compute:function(V){var U=Element.Layout.COMPUTATIONS;if(!(V in U)){throw"Property not found."}return this._set(V,U[V].call(this,this.element))},toObject:function(){var U=$A(arguments);var V=(U.length===0)?Element.Layout.PROPERTIES:U.join(" ").split(" ");var W={};V.each(function(X){if(!Element.Layout.PROPERTIES.include(X)){return }var Y=this.get(X);if(Y!=null){W[X]=Y}},this);return W},toHash:function(){var U=this.toObject.apply(this,arguments);return new Hash(U)},toCSS:function(){var U=$A(arguments);var W=(U.length===0)?Element.Layout.PROPERTIES:U.join(" ").split(" ");var V={};W.each(function(X){if(!Element.Layout.PROPERTIES.include(X)){return }if(Element.Layout.COMPOSITE_PROPERTIES.include(X)){return }var Y=this.get(X);if(Y!=null){V[F(X)]=Y+"px"}},this);return V},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(W){if(!this._preComputing){this._begin()}var U=this.get("border-box-height");if(U<=0){if(!this._preComputing){this._end()}return 0}var X=this.get("border-top"),V=this.get("border-bottom");var Z=this.get("padding-top"),Y=this.get("padding-bottom");if(!this._preComputing){this._end()}return U-X-V-Z-Y},width:function(W){if(!this._preComputing){this._begin()}var V=this.get("border-box-width");if(V<=0){if(!this._preComputing){this._end()}return 0}var Z=this.get("border-left"),U=this.get("border-right");var X=this.get("padding-left"),Y=this.get("padding-right");if(!this._preComputing){this._end()}return V-Z-U-X-Y},"padding-box-height":function(V){var U=this.get("height"),X=this.get("padding-top"),W=this.get("padding-bottom");return U+X+W},"padding-box-width":function(U){var V=this.get("width"),W=this.get("padding-left"),X=this.get("padding-right");return V+W+X},"border-box-height":function(V){if(!this._preComputing){this._begin()}var U=V.offsetHeight;if(!this._preComputing){this._end()}return U},"border-box-width":function(U){if(!this._preComputing){this._begin()}var V=U.offsetWidth;if(!this._preComputing){this._end()}return V},"margin-box-height":function(V){var U=this.get("border-box-height"),W=this.get("margin-top"),X=this.get("margin-bottom");if(U<=0){return 0}return U+W+X},"margin-box-width":function(W){var V=this.get("border-box-width"),X=this.get("margin-left"),U=this.get("margin-right");if(V<=0){return 0}return V+X+U},top:function(U){var V=U.positionedOffset();return V.top},bottom:function(U){var X=U.positionedOffset(),V=U.getOffsetParent(),W=V.measure("height");var Y=this.get("border-box-height");return W-Y-X.top},left:function(U){var V=U.positionedOffset();return V.left},right:function(W){var Y=W.positionedOffset(),X=W.getOffsetParent(),U=X.measure("width");var V=this.get("border-box-width");return U-V-Y.left},"padding-top":function(U){return O(U,"paddingTop")},"padding-bottom":function(U){return O(U,"paddingBottom")},"padding-left":function(U){return O(U,"paddingLeft")},"padding-right":function(U){return O(U,"paddingRight")},"border-top":function(U){return O(U,"borderTopWidth")},"border-bottom":function(U){return O(U,"borderBottomWidth")},"border-left":function(U){return O(U,"borderLeftWidth")},"border-right":function(U){return O(U,"borderRightWidth")},"margin-top":function(U){return O(U,"marginTop")},"margin-bottom":function(U){return O(U,"marginBottom")},"margin-left":function(U){return O(U,"marginLeft")},"margin-right":function(U){return O(U,"marginRight")}}});if("getBoundingClientRect" in document.documentElement){Object.extend(Element.Layout.COMPUTATIONS,{right:function(V){var W=D(V.getOffsetParent());var X=V.getBoundingClientRect(),U=W.getBoundingClientRect();return(U.right-X.right).round()},bottom:function(V){var W=D(V.getOffsetParent());var X=V.getBoundingClientRect(),U=W.getBoundingClientRect();return(U.bottom-X.bottom).round()}})}Element.Offset=Class.create({initialize:function(V,U){this.left=V.round();this.top=U.round();this[0]=this.left;this[1]=this.top},relativeTo:function(U){return new Element.Offset(this.left-U.left,this.top-U.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 R(V,U){return new Element.Layout(V,U)}function B(U,V){return $(U).getLayout().get(V)}function N(V){V=$(V);var Z=Element.getStyle(V,"display");if(Z&&Z!=="none"){return{width:V.offsetWidth,height:V.offsetHeight}}var W=V.style;var U={visibility:W.visibility,position:W.position,display:W.display};var Y={visibility:"hidden",display:"block"};if(U.position!=="fixed"){Y.position="absolute"}Element.setStyle(V,Y);var 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