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c="className",a="for",b=document.createElement("div");b.setAttribute(c,"x");if(b.className!=="x"){b.setAttribute("class","x");if(b.className==="x"){c="class"}}b=null;b=document.createElement("label");b.setAttribute(a,"x");if(b.htmlFor!=="x"){b.setAttribute("htmlFor","x");if(b.htmlFor==="x"){a="htmlFor"}}b=null;return{read:{names:{"class":c,className:c,"for":a,htmlFor:a},values:{_getAttr:function(e,d){return e.getAttribute(d)},_getAttr2:function(e,d){return e.getAttribute(d,2)},_getAttrNode:function(f,d){var e=f.getAttributeNode(d);return e?e.value:""},_getEv:(function(){var f=document.createElement("div"),d;f.onclick=Prototype.emptyFunction;var e=f.getAttribute("onclick");if(String(e).indexOf("{")>-1){d=function(h,g){g=h.getAttribute(g);if(!g){return null}g=g.toString();g=g.split("{")[1];g=g.split("}")[0];return g.strip()}}else{if(e===""){d=function(h,g){g=h.getAttribute(g);if(!g){return null}return g.strip()}}}f=null;return d})(),_flag:function(e,d){return $(e).hasAttribute(d)?d:null},style:function(d){return d.style.cssText.toLowerCase()},title:function(d){return d.title}}}}})();Element._attributeTranslations.write={names:Object.extend({cellpadding:"cellPadding",cellspacing:"cellSpacing"},Element._attributeTranslations.read.names),values:{checked:function(a,b){a.checked=!!b},style:function(a,b){a.style.cssText=b?b:""}}};Element._attributeTranslations.has={};$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(c){var f=c.getElementsByTagName("*"),d=[];for(var e=0,b;b=f[e];e++){if(b.tagName!=="!"){d.push(b)}}return d}Element.Methods.down=function(c,b,d){c=$(c);if(arguments.length==1){return c.firstDescendant()}return Object.isNumber(b)?a(c)[b]:Element.select(c,b)[d||0]}})()}}else{if(Prototype.Browser.Gecko&&/rv:1\.8\.0/.test(navigator.userAgent)){Element.Methods.setOpacity=function(a,b){a=$(a);a.style.opacity=(b==1)?0.999999:(b==="")?"":(b<0.00001)?0:b;return a}}else{if(Prototype.Browser.WebKit){Element.Methods.setOpacity=function(a,d){a=$(a);a.style.opacity=(d==1||d==="")?"":(d<0.00001)?0:d;if(d==1){if(a.tagName.toUpperCase()=="IMG"&&a.width){a.width++;a.width--}else{try{var b=document.createTextNode(" ");a.appendChild(b);a.removeChild(b)}catch(c){}}}return a}}}}}if("outerHTML" in document.documentElement){Element.Methods.replace=function(e,c){e=$(e);if(c&&c.toElement){c=c.toElement()}if(Object.isElement(c)){e.parentNode.replaceChild(c,e);return e}c=Object.toHTML(c);var d=e.parentNode,f=d.tagName.toUpperCase();if(Element._insertionTranslations.tags[f]){var b=e.next(),a=Element._getContentFromAnonymousElement(f,c.stripScripts());d.removeChild(e);if(b){a.each(function(g){d.insertBefore(g,b)})}else{a.each(function(g){d.appendChild(g)})}}else{e.outerHTML=c.stripScripts()}c.evalScripts.bind(c).defer();return e}}Element._returnOffset=function(c,b){var a=[c,b];a.left=c;a.top=b;return a};Element._getContentFromAnonymousElement=function(c,d){var b=new Element("div"),e=Element._insertionTranslations.tags[c];if(e){b.innerHTML=e[0]+d+e[1];for(var a=e[2];a--;){b=b.firstChild}}else{b.innerHTML=d}return $A(b.childNodes)};Element._insertionTranslations={before:function(a,b){a.parentNode.insertBefore(b,a)},top:function(a,b){a.insertBefore(b,a.firstChild)},bottom:function(a,b){a.appendChild(b)},after:function(a,b){a.parentNode.insertBefore(b,a.nextSibling)},tags:{TABLE:["<table>","</table>",1],TBODY:["<table><tbody>","</tbody></table>",2],TR:["<table><tbody><tr>","</tr></tbody></table>",3],TD:["<table><tbody><tr><td>","</td></tr></tbody></table>",4],SELECT:["<select>","</select>",1]}};(function(){var a=Element._insertionTranslations.tags;Object.extend(a,{THEAD:a.TBODY,TFOOT:a.TBODY,TH:a.TD})})();Element.Methods.Simulated={hasAttribute:function(a,b){b=Element._attributeTranslations.has[b]||b;var c=$(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 e(k){if(typeof window.Element!="undefined"){var i=window.Element.prototype;if(i){var g="_"+(Math.random()+"").slice(2),j=document.createElement(k);i[g]="x";var h=(j[g]!=="x");delete i[g];j=null;return h}}return false}function f(i,j){for(var g in j){var h=j[g];if(Object.isFunction(h)&&!(g in i)){i[g]=h.methodize()}}}var d=e("object");if(Prototype.BrowserFeatures.SpecificElementExtensions){if(d){return function(g){if(g&&typeof g._extendedByPrototype=="undefined"){var h=g.tagName;if(h&&(/^(?:object|applet|embed)$/i.test(h))){f(g,Element.Methods);f(g,Element.Methods.Simulated);f(g,Element.Methods.ByTag[h.toUpperCase()])}}return g}}return Prototype.K}var a={},c=Element.Methods.ByTag;var b=Object.extend(function(g){if(!g||typeof g._extendedByPrototype!="undefined"||g.nodeType!=1||g==window){return g}var i=Object.clone(a),h=g.tagName.toUpperCase();if(c[h]){Object.extend(i,c[h])}f(g,i);g._extendedByPrototype=Prototype.emptyFunction;return g},{refresh:function(){if(!Prototype.BrowserFeatures.ElementExtensions){Object.extend(a,Element.Methods);Object.extend(a,Element.Methods.Simulated)}}});b.refresh();return b})();if(document.documentElement.hasAttribute){Element.hasAttribute=function(a,b){return a.hasAttribute(b)}}else{Element.hasAttribute=Element.Methods.Simulated.hasAttribute}Element.addMethods=function(b){var f=Prototype.BrowserFeatures,a=Element.Methods.ByTag;if(!b){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)})}if(arguments.length==2){var c=b;b=arguments[1]}if(!c){Object.extend(Element.Methods,b||{})}else{if(Object.isArray(c)){c.each(h)}else{h(c)}}function h(k){k=k.toUpperCase();if(!Element.Methods.ByTag[k]){Element.Methods.ByTag[k]={}}Object.extend(Element.Methods.ByTag[k],b)}function d(o,k,l){l=l||false;for(var m in o){var n=o[m];if(!Object.isFunction(n)){continue}if(!l||!(m in k)){k[m]=n.methodize()}}}function j(n){var l;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[n]){l="HTML"+o[n]+"Element"}if(window[l]){return window[l]}l="HTML"+n+"Element";if(window[l]){return window[l]}l="HTML"+n.capitalize()+"Element";if(window[l]){return window[l]}var k=document.createElement(n),m=k.__proto__||k.constructor.prototype;k=null;return m}var g=window.HTMLElement?HTMLElement.prototype:Element.prototype;if(f.ElementExtensions){d(Element.Methods,g);d(Element.Methods.Simulated,g,true)}if(f.SpecificElementExtensions){for(var e in Element.Methods.ByTag){var i=j(e);if(Object.isUndefined(i)){continue}d(a[e],i.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(g){var b=Prototype.Browser,d=document,f,e={};function a(){if(b.WebKit&&!d.evaluate){return document}if(b.Opera&&window.parseFloat(window.opera.version())<9.5){return document.body}return document.documentElement}function c(h){if(!f){f=a()}e[h]="client"+h;g["get"+h]=function(){return f[e[h]]};return g["get"+h]()}g.getWidth=c.curry("Width");g.getHeight=c.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]=$H()}return Element.Storage[a]},store:function(c,a,b){if(!(c=$(c))){return}if(arguments.length===2){Element.getStorage(c).update(a)}else{Element.getStorage(c).set(a,b)}return c},retrieve:function(d,e,a){if(!(d=$(d))){return}var b=Element.getStorage(d),c=b.get(e);if(Object.isUndefined(c)){b.set(e,a);c=a}return c},clone:function(d,a){if(!(d=$(d))){return}var b=d.cloneNode(a);b._prototypeUID=void 0;if(a){var c=Element.select(b,"*"),e=c.length;while(e--){c[e]._prototypeUID=void 0}}return Element.extend(b)},purge:function(c){if(!(c=$(c))){return}var a=Element._purgeElement;a(c);var b=c.getElementsByTagName("*"),d=b.length;while(d--){a(b[d])}return null}});(function(){function l(s){var t=s.match(/^(\d+)%?$/i);if(!t){return null}return(Number(t[1])/100)}function f(B,A,y){var v=null;if(Object.isElement(B)){v=B;B=v.getStyle(A)}if(B===null){return null}if((/^(?:-)?\d+(\.\d+)?(px)?$/i).test(B)){return window.parseFloat(B)}var t=B.include("%"),x=(y===document.viewport);if(/\d/.test(B)&&v&&v.runtimeStyle&&!(t&&x)){var z=v.style.left,C=v.runtimeStyle.left;v.runtimeStyle.left=v.currentStyle.left;v.style.left=B||0;B=v.style.pixelLeft;v.style.left=z;v.runtimeStyle.left=C;return B}if(v&&t){y=y||v.parentNode;var w=l(B);var s=null;var u=v.getStyle("position");var D=A.include("left")||A.include("right")||A.include("width");var E=A.include("top")||A.include("bottom")||A.include("height");if(y===document.viewport){if(D){s=document.viewport.getWidth()}else{if(E){s=document.viewport.getHeight()}}}else{if(D){s=$(y).measure("width")}else{if(E){s=$(y).measure("height")}}}return(s===null)?0:s*w}return 0}function m(s){if(Object.isString(s)&&s.endsWith("px")){return s}return s+"px"}function j(t){var u=t;while(t&&t.parentNode){var s=t.getStyle("display");if(s==="none"){return false}t=$(t.parentNode)}return true}var o=Prototype.K;if("currentStyle" in document.documentElement){o=function(s){if(!s.currentStyle.hasLayout){s.style.zoom=1}return s}}function n(s){if(s.include("border")){s=s+"-width"}return s.camelize()}Element.Layout=Class.create(Hash,{initialize:function($super,s,t){$super();this.element=$(s);Element.Layout.PROPERTIES.each(function(u){this._set(u,null)},this);if(t){this._preComputing=true;this._begin();Element.Layout.PROPERTIES.each(this._compute,this);this._end();this._preComputing=false}},_set:function(s,t){return Hash.prototype.set.call(this,s,t)},set:function(s,t){throw"Properties of Element.Layout are read-only."},get:function($super,s){var t=$super(s);return t===null?this._compute(s):t},_begin:function(){if(this._prepared){return}var v=this.element;if(j(v)){this._prepared=true;return}var t={position:v.style.position||"",width:v.style.width||"",visibility:v.style.visibility||"",display:v.style.display||""};v.store("prototype_original_styles",t);var s=v.getStyle("position"),z=v.getStyle("width");var y=(s==="fixed")?document.viewport:v.parentNode;v.setStyle({position:"absolute",visibility:"hidden",display:"block"});var x=v.getStyle("width");var w;if(z&&(x===z)){w=f(v,"width",y)}else{if(s==="absolute"||s==="fixed"){w=f(v,"width",y)}else{var A=v.parentNode,u=$(A).getLayout();w=u.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")}}v.setStyle({width:w+"px"});this._prepared=true},_end:function(){var s=this.element;var t=s.retrieve("prototype_original_styles");s.store("prototype_original_styles",null);s.setStyle(t);this._prepared=false},_compute:function(s){var t=Element.Layout.COMPUTATIONS;if(!(s in t)){throw"Property not found."}return this._set(s,t[s].call(this,this.element))},toObject:function(){var u=$A(arguments);var t=(u.length===0)?Element.Layout.PROPERTIES:u.join(" ").split(" ");var s={};t.each(function(w){if(!Element.Layout.PROPERTIES.include(w)){return}var v=this.get(w);if(v!=null){s[w]=v}},this);return s},toHash:function(){var s=this.toObject.apply(this,arguments);return new Hash(s)},toCSS:function(){var u=$A(arguments);var s=(u.length===0)?Element.Layout.PROPERTIES:u.join(" ").split(" ");var t={};s.each(function(w){if(!Element.Layout.PROPERTIES.include(w)){return}if(Element.Layout.COMPOSITE_PROPERTIES.include(w)){return}var v=this.get(w);if(v!=null){t[n(w)]=v+"px"}},this);return t},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(u){if(!this._preComputing){this._begin()}var w=this.get("border-box-height");if(w<=0){if(!this._preComputing){this._end()}return 0}var t=this.get("border-top"),v=this.get("border-bottom");var x=this.get("padding-top"),s=this.get("padding-bottom");if(!this._preComputing){this._end()}return w-t-v-x-s},width:function(u){if(!this._preComputing){this._begin()}var v=this.get("border-box-width");if(v<=0){if(!this._preComputing){this._end()}return 0}var x=this.get("border-left"),w=this.get("border-right");var t=this.get("padding-left"),s=this.get("padding-right");if(!this._preComputing){this._end()}return v-x-w-t-s},"padding-box-height":function(u){var v=this.get("height"),s=this.get("padding-top"),t=this.get("padding-bottom");return v+s+t},"padding-box-width":function(v){var u=this.get("width"),t=this.get("padding-left"),s=this.get("padding-right");return u+t+s},"border-box-height":function(s){if(!this._preComputing){this._begin()}var t=s.offsetHeight;if(!this._preComputing){this._end()}return t},"border-box-width":function(t){if(!this._preComputing){this._begin()}var s=t.offsetWidth;if(!this._preComputing){this._end()}return s},"margin-box-height":function(u){var v=this.get("border-box-height"),t=this.get("margin-top"),s=this.get("margin-bottom");if(v<=0){return 0}return v+t+s},"margin-box-width":function(t){var u=this.get("border-box-width"),s=this.get("margin-left"),v=this.get("margin-right");if(u<=0){return 0}return u+s+v},top:function(t){var s=t.positionedOffset();return s.top},bottom:function(w){var t=w.positionedOffset(),v=w.getOffsetParent(),u=v.measure("height");var s=this.get("border-box-height");return u-s-t.top},left:function(t){var s=t.positionedOffset();return s.left},right:function(u){var s=u.positionedOffset(),t=u.getOffsetParent(),w=t.measure("width");var v=this.get("border-box-width");return w-v-s.left},"padding-top":function(s){return f(s,"paddingTop")},"padding-bottom":function(s){return f(s,"paddingBottom")},"padding-left":function(s){return f(s,"paddingLeft")},"padding-right":function(s){return f(s,"paddingRight")},"border-top":function(s){return f(s,"borderTopWidth")},"border-bottom":function(s){return f(s,"borderBottomWidth")},"border-left":function(s){return f(s,"borderLeftWidth")},"border-right":function(s){return f(s,"borderRightWidth")},"margin-top":function(s){return f(s,"marginTop")},"margin-bottom":function(s){return f(s,"marginBottom")},"margin-left":function(s){return f(s,"marginLeft")},"margin-right":function(s){return f(s,"marginRight")}}});if("getBoundingClientRect" in document.documentElement){Object.extend(Element.Layout.COMPUTATIONS,{right:function(u){var t=o(u.getOffsetParent());var s=u.getBoundingClientRect(),v=t.getBoundingClientRect();return(v.right-s.right).round()},bottom:function(u){var t=o(u.getOffsetParent());var s=u.getBoundingClientRect(),v=t.getBoundingClientRect();return(v.bottom-s.bottom).round()}})}Element.Offset=Class.create({initialize:function(s,t){this.left=s.round();this.top=t.round();this[0]=this.left;this[1]=this.top},relativeTo:function(s){return new Element.Offset(this.left-s.left,this.top-s.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 c(s,t){return new Element.Layout(s,t)}function q(t,s){return $(t).getLayout().get(s)}function g(v){v=$(v);var x=Element.getStyle(v,"display");if(x&&x!=="none"){return{width:v.offsetWidth,height:v.offsetHeight}}var u=v.style;var w={visibility:u.visibility,position:u.position,display:u.display};var 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