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