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a="className",b="for",c=document.createElement("div");c.setAttribute(a,"x");if(c.className!=="x"){c.setAttribute("class","x");if(c.className==="x"){a="class"}}c=null;c=document.createElement("label");c.setAttribute(b,"x");if(c.htmlFor!=="x"){c.setAttribute("htmlFor","x");if(c.htmlFor==="x"){b="htmlFor"}}c=null;return{read:{names:{"class":a,className:a,"for":b,htmlFor:b},values:{_getAttr:function(a,b){return a.getAttribute(b)},_getAttr2:function(a,b){return a.getAttribute(b,2)},_getAttrNode:function(a,b){var c=a.getAttributeNode(b);return c?c.value:""},_getEv:function(){var a=document.createElement("div"),b;a.onclick=Prototype.emptyFunction;var c=a.getAttribute("onclick");if(String(c).indexOf("{")>-1){b=function(a,b){b=a.getAttribute(b);if(!b)return null;b=b.toString();b=b.split("{")[1];b=b.split("}")[0];return b.strip()}}else if(c===""){b=function(a,b){b=a.getAttribute(b);if(!b)return null;return b.strip()}}a=null;return b}(),_flag:function(a,b){return $(a).hasAttribute(b)?b:null},style:function(a){return a.style.cssText.toLowerCase()},title:function(a){return a.title}}}}}();Element._attributeTranslations.write={names:Object.extend({cellpadding:"cellPadding",cellspacing:"cellSpacing"},Element._attributeTranslations.read.names),values:{checked:function(a,b){a.checked=!!b},style:function(a,b){a.style.cssText=b?b:""}}};Element._attributeTranslations.has={};$w("colSpan rowSpan vAlign dateTime accessKey tabIndex "+"encType maxLength readOnly longDesc 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Object.isNumber(c)?a(b)[c]:Element.select(b,c)[d||0]}})()}}else if(Prototype.Browser.Gecko&&/rv:1\.8\.0/.test(navigator.userAgent)){Element.Methods.setOpacity=function(a,b){a=$(a);a.style.opacity=b==1?.999999:b===""?"":b<1e-5?0:b;return a}}else if(Prototype.Browser.WebKit){Element.Methods.setOpacity=function(a,b){a=$(a);a.style.opacity=b==1||b===""?"":b<1e-5?0:b;if(b==1)if(a.tagName.toUpperCase()=="IMG"&&a.width){a.width++;a.width--}else try{var c=document.createTextNode(" ");a.appendChild(c);a.removeChild(c)}catch(d){}return a}}if("outerHTML"in document.documentElement){Element.Methods.replace=function(a,b){a=$(a);if(b&&b.toElement)b=b.toElement();if(Object.isElement(b)){a.parentNode.replaceChild(b,a);return a}b=Object.toHTML(b);var c=a.parentNode,d=c.tagName.toUpperCase();if(Element._insertionTranslations.tags[d]){var e=a.next(),f=Element._getContentFromAnonymousElement(d,b.stripScripts());c.removeChild(a);if(e)f.each(function(a){c.insertBefore(a,e)});else f.each(function(a){c.appendChild(a)})}else a.outerHTML=b.stripScripts();b.evalScripts.bind(b).defer();return a}}Element._returnOffset=function(a,b){var c=[a,b];c.left=a;c.top=b;return c};Element._getContentFromAnonymousElement=function(a,b,c){var d=new Element("div"),e=Element._insertionTranslations.tags[a];var f=false;if(e)f=true;else if(c){f=true;e=["","",0]}if(f){d.innerHTML=" "+e[0]+b+e[1];d.removeChild(d.firstChild);for(var g=e[2];g--;){d=d.firstChild}}else{d.innerHTML=b}return $A(d.childNodes)};Element._insertionTranslations={before:function(a,b){a.parentNode.insertBefore(b,a)},top:function(a,b){a.insertBefore(b,a.firstChild)},bottom:function(a,b){a.appendChild(b)},after:function(a,b){a.parentNode.insertBefore(b,a.nextSibling)},tags:{TABLE:["<table>","</table>",1],TBODY:["<table><tbody>","</tbody></table>",2],TR:["<table><tbody><tr>","</tr></tbody></table>",3],TD:["<table><tbody><tr><td>","</td></tr></tbody></table>",4],SELECT:["<select>","</select>",1]}};(function(){var a=Element._insertionTranslations.tags;Object.extend(a,{THEAD:a.TBODY,TFOOT:a.TBODY,TH:a.TD})})();Element.Methods.Simulated={hasAttribute:function(a,b){b=Element._attributeTranslations.has[b]||b;var c=$(a).getAttributeNode(b);return!!(c&&c.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 b(a,b){for(var c in b){var d=b[c];if(Object.isFunction(d)&&!(c in a))a[c]=d.methodize()}}function a(a){if(typeof window.Element!="undefined"){var b=window.Element.prototype;if(b){var c="_"+(Math.random()+"").slice(2),d=document.createElement(a);b[c]="x";var e=d[c]!=="x";delete b[c];d=null;return e}}return false}var c=a("object");if(Prototype.BrowserFeatures.SpecificElementExtensions){if(c){return function(a){if(a&&typeof a._extendedByPrototype=="undefined"){var c=a.tagName;if(c&&/^(?:object|applet|embed)$/i.test(c)){b(a,Element.Methods);b(a,Element.Methods.Simulated);b(a,Element.Methods.ByTag[c.toUpperCase()])}}return a}}return Prototype.K}var d={},e=Element.Methods.ByTag;var f=Object.extend(function(a){if(!a||typeof a._extendedByPrototype!="undefined"||a.nodeType!=1||a==window)return a;var c=Object.clone(d),f=a.tagName.toUpperCase();if(e[f])Object.extend(c,e[f]);b(a,c);a._extendedByPrototype=Prototype.emptyFunction;return a},{refresh:function(){if(!Prototype.BrowserFeatures.ElementExtensions){Object.extend(d,Element.Methods);Object.extend(d,Element.Methods.Simulated)}}});f.refresh();return f}();if(document.documentElement.hasAttribute){Element.hasAttribute=function(a,b){return a.hasAttribute(b)}}else{Element.hasAttribute=Element.Methods.Simulated.hasAttribute}Element.addMethods=function(a){function g(a){var b;var c={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(c[a])b="HTML"+c[a]+"Element";if(window[b])return window[b];b="HTML"+a+"Element";if(window[b])return window[b];b="HTML"+a.capitalize()+"Element";if(window[b])return window[b];var d=document.createElement(a),e=d["__proto__"]||d.constructor.prototype;d=null;return e}function f(a,b,c){c=c||false;for(var d in a){var e=a[d];if(!Object.isFunction(e))continue;if(!c||!(d in b))b[d]=e.methodize()}}function e(b){b=b.toUpperCase();if(!Element.Methods.ByTag[b])Element.Methods.ByTag[b]={};Object.extend(Element.Methods.ByTag[b],a)}var b=Prototype.BrowserFeatures,c=Element.Methods.ByTag;if(!a){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 d=a;a=arguments[1]}if(!d)Object.extend(Element.Methods,a||{});else{if(Object.isArray(d))d.each(e);else e(d)}var h=window.HTMLElement?HTMLElement.prototype:Element.prototype;if(b.ElementExtensions){f(Element.Methods,h);f(Element.Methods.Simulated,h,true)}if(b.SpecificElementExtensions){for(var i in Element.Methods.ByTag){var j=g(i);if(Object.isUndefined(j))continue;f(c[i],j.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(a){function g(b){if(!d)d=f();e[b]="client"+b;a["get"+b]=function(){return d[e[b]]};return a["get"+b]()}function f(){if(b.WebKit&&!c.evaluate)return document;if(b.Opera&&window.parseFloat(window.opera.version())<9.5)return document.body;return document.documentElement}var b=Prototype.Browser,c=document,d,e={};a.getWidth=g.curry("Width");a.getHeight=g.curry("Height")})(document.viewport);Element.Storage={UID:1};Element.addMethods({getStorage:function(a){if(!(a=$(a)))return;var b;if(a===window){b=0}else{if(typeof a._prototypeUID==="undefined")a._prototypeUID=Element.Storage.UID++;b=a._prototypeUID}if(!Element.Storage[b])Element.Storage[b]=$H();return Element.Storage[b]},store:function(a,b,c){if(!(a=$(a)))return;if(arguments.length===2){Element.getStorage(a).update(b)}else{Element.getStorage(a).set(b,c)}return a},retrieve:function(a,b,c){if(!(a=$(a)))return;var d=Element.getStorage(a),e=d.get(b);if(Object.isUndefined(e)){d.set(b,c);e=c}return e},clone:function(a,b){if(!(a=$(a)))return;var c=a.cloneNode(b);c._prototypeUID=void 0;if(b){var d=Element.select(c,"*"),e=d.length;while(e--){d[e]._prototypeUID=void 0}}return Element.extend(c)},purge:function(a){if(!(a=$(a)))return;var b=Element._purgeElement;b(a);var c=a.getElementsByTagName("*"),d=c.length;while(d--)b(c[d]);return null}});(function(){function t(a){return a!==document.body&&!Element.descendantOf(a,document.body)}function s(a){return a.nodeType===Node.DOCUMENT_NODE}function r(a){return a.nodeName.toUpperCase()==="HTML"}function q(a){return a.nodeName.toUpperCase()==="BODY"}function p(a){a=$(a);if(Element.getStyle(a,"position")==="relative"){return a}var b=a.retrieve("prototype_absolutize_original_styles");if(b)a.setStyle(b);return a}function o(a){a=$(a);if(Element.getStyle(a,"position")==="absolute"){return a}var b=j(a);var c=a.viewportOffset(),d=b.viewportOffset();var e=c.relativeTo(d);var f=a.getLayout();a.store("prototype_absolutize_original_styles",{left:a.getStyle("left"),top:a.getStyle("top"),width:a.getStyle("width"),height:a.getStyle("height")});a.setStyle({position:"absolute",top:e.top+"px",left:e.left+"px",width:f.get("width")+"px",height:f.get("height")+"px"});return a}function n(a){e=$(e);var b=0,c=0,d=document.body;var e=a;do{b+=e.offsetTop||0;c+=e.offsetLeft||0;if(e.offsetParent==d&&Element.getStyle(e,"position")=="absolute")break}while(e=e.offsetParent);e=a;do{if(e!=d){b-=e.scrollTop||0;c-=e.scrollLeft||0}}while(e=e.parentNode);return new Element.Offset(c,b)}function m(a){var b=0,c=0;do{b+=a.scrollTop||0;c+=a.scrollLeft||0;a=a.parentNode}while(a);return new Element.Offset(c,b)}function l(a){a=$(a);var b=a.getLayout();var c=0,d=0;do{c+=a.offsetTop||0;d+=a.offsetLeft||0;a=a.offsetParent;if(a){if(q(a))break;var e=Element.getStyle(a,"position");if(e!=="static")break}}while(a);d-=b.get("margin-top");c-=b.get("margin-left");return new Element.Offset(d,c)}function k(a){a=$(a);var b=0,c=0;if(a.parentNode){do{b+=a.offsetTop||0;c+=a.offsetLeft||0;a=a.offsetParent}while(a)}return new Element.Offset(c,b)}function j(a){a=$(a);if(s(a)||t(a)||q(a)||r(a))return $(document.body);var b=Element.getStyle(a,"display")==="inline";if(!b&&a.offsetParent)return $(a.offsetParent);while((a=a.parentNode)&&a!==document.body){if(Element.getStyle(a,"position")!=="static"){return r(a)?$(document.body):$(a)}}return $(document.body)}function i(a){a=$(a);var b=Element.getStyle(a,"display");if(b&&b!=="none"){return{width:a.offsetWidth,height:a.offsetHeight}}var c=a.style;var d={visibility:c.visibility,position:c.position,display:c.display};var e={visibility:"hidden",display:"block"};if(d.position!=="fixed")e.position="absolute";Element.setStyle(a,e);var f={width:a.offsetWidth,height:a.offsetHeight};Element.setStyle(a,d);return f}function h(a,b){return $(a).getLayout().get(b)}function g(a,b){return new Element.Layout(a,b)}function f(a){if(a.include("border"))a=a+"-width";return a.camelize()}function d(a){var b=a;while(a&&a.parentNode){var c=a.getStyle("display");if(c==="none"){return false}a=$(a.parentNode)}return true}function c(a){if(Object.isString(a)&&a.endsWith("px")){return a}return a+"px"}function b(b,c,d){var e=null;if(Object.isElement(b)){e=b;b=e.getStyle(c)}if(b===null){return null}if(/^(?:-)?\d+(\.\d+)?(px)?$/i.test(b)){return window.parseFloat(b)}var f=b.include("%"),g=d===document.viewport;if(/\d/.test(b)&&e&&e.runtimeStyle&&!(f&&g)){var h=e.style.left,i=e.runtimeStyle.left;e.runtimeStyle.left=e.currentStyle.left;e.style.left=b||0;b=e.style.pixelLeft;e.style.left=h;e.runtimeStyle.left=i;return b}if(e&&f){d=d||e.parentNode;var j=a(b);var k=null;var l=e.getStyle("position");var m=c.include("left")||c.include("right")||c.include("width");var n=c.include("top")||c.include("bottom")||c.include("height");if(d===document.viewport){if(m){k=document.viewport.getWidth()}else if(n){k=document.viewport.getHeight()}}else{if(m){k=$(d).measure("width")}else if(n){k=$(d).measure("height")}}return k===null?0:k*j}return 0}function a(a){var b=a.match(/^(\d+)%?$/i);if(!b)return null;return Number(b[1])/100}var e=Prototype.K;if("currentStyle"in document.documentElement){e=function(a){if(!a.currentStyle.hasLayout){a.style.zoom=1}return a}}Element.Layout=Class.create(Hash,{initialize:function(a,b,c){a();this.element=$(b);Element.Layout.PROPERTIES.each(function(a){this._set(a,null)},this);if(c){this._preComputing=true;this._begin();Element.Layout.PROPERTIES.each(this._compute,this);this._end();this._preComputing=false}},_set:function(a,b){return Hash.prototype.set.call(this,a,b)},set:function(a,b){throw"Properties of Element.Layout are read-only."},get:function(a,b){var c=a(b);return c===null?this._compute(b):c},_begin:function(){if(this._prepared)return;var a=this.element;if(d(a)){this._prepared=true;return}var c={position:a.style.position||"",width:a.style.width||"",visibility:a.style.visibility||"",display:a.style.display||""};a.store("prototype_original_styles",c);var e=a.getStyle("position"),f=a.getStyle("width");if(f==="0px"||f===null){a.style.display="block";f=a.getStyle("width")}var g=e==="fixed"?document.viewport:a.parentNode;a.setStyle({position:"absolute",visibility:"hidden",display:"block"});var h=a.getStyle("width");var i;if(f&&h===f){i=b(a,"width",g)}else if(e==="absolute"||e==="fixed"){i=b(a,"width",g)}else{var j=a.parentNode,k=$(j).getLayout();i=k.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:i+"px"});this._prepared=true},_end:function(){var a=this.element;var b=a.retrieve("prototype_original_styles");a.store("prototype_original_styles",null);a.setStyle(b);this._prepared=false},_compute:function(a){var b=Element.Layout.COMPUTATIONS;if(!(a in b)){throw"Property not found."}return this._set(a,b[a].call(this,this.element))},toObject:function(){var a=$A(arguments);var b=a.length===0?Element.Layout.PROPERTIES:a.join(" ").split(" ");var c={};b.each(function(a){if(!Element.Layout.PROPERTIES.include(a))return;var b=this.get(a);if(b!=null)c[a]=b},this);return c},toHash:function(){var a=this.toObject.apply(this,arguments);return new Hash(a)},toCSS:function(){var a=$A(arguments);var b=a.length===0?Element.Layout.PROPERTIES:a.join(" ").split(" ");var c={};b.each(function(a){if(!Element.Layout.PROPERTIES.include(a))return;if(Element.Layout.COMPOSITE_PROPERTIES.include(a))return;var b=this.get(a);if(b!=null)c[f(a)]=b+"px"},this);return c},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(a){if(!this._preComputing)this._begin();var b=this.get("border-box-height");if(b<=0){if(!this._preComputing)this._end();return 0}var c=this.get("border-top"),d=this.get("border-bottom");var e=this.get("padding-top"),f=this.get("padding-bottom");if(!this._preComputing)this._end();return b-c-d-e-f},width:function(a){if(!this._preComputing)this._begin();var b=this.get("border-box-width");if(b<=0){if(!this._preComputing)this._end();return 0}var c=this.get("border-left"),d=this.get("border-right");var e=this.get("padding-left"),f=this.get("padding-right");if(!this._preComputing)this._end();return b-c-d-e-f},"padding-box-height":function(a){var b=this.get("height"),c=this.get("padding-top"),d=this.get("padding-bottom");return b+c+d},"padding-box-width":function(a){var b=this.get("width"),c=this.get("padding-left"),d=this.get("padding-right");return b+c+d},"border-box-height":function(a){if(!this._preComputing)this._begin();var b=a.offsetHeight;if(!this._preComputing)this._end();return b},"border-box-width":function(a){if(!this._preComputing)this._begin();var b=a.offsetWidth;if(!this._preComputing)this._end();return 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