/*
 * Web Forms 2.0 Cross-browser Implementation <http://code.google.com/p/webforms2/>
 * Version: 0.5.4 (2008-07-29)
 * Copyright: 2007, Weston Ruter <http://weston.ruter.net/>
 * License: GNU General Public License, Free Software Foundation
 *          <http://creativecommons.org/licenses/GPL/2.0/>
 * 
 * The comments contained in this code are largely quotations from the 
 * WebForms 2.0 specification: <http://whatwg.org/specs/web-forms/current-work/>
 *
 * Usage: <script type="text/javascript" src="webforms2.js"></script>
 */

if(!window.$wf2){var $wf2={};if(document.implementation&&document.implementation.hasFeature&&!document.implementation.hasFeature("WebForms","2.0")){$wf2={version:"0.5.4",isInitialized:false,libpath:"",globalEvent:null,hasElementExtensions:window.HTMLElement&&HTMLElement.prototype,hasGettersAndSetters:$wf2.__defineGetter__&&$wf2.__defineSetter__,hasBadImplementation:navigator.userAgent.indexOf("WebKit"),callBeforeValidation:new Array,callAfterValidation:new Array,callAfterDOMContentLoaded:new Array, onDOMContentLoaded:function(){if($wf2.isInitialized)return;$wf2.isInitialized=true;var i,j,k,node;if(document.createEventObject)$wf2.globalEvent=document.createEventObject();else if(document.createEvent)$wf2.globalEvent=document.createEvent("HTMLEvents");var style=document.createElement("link");style.setAttribute("type","text/css");style.setAttribute("rel","stylesheet");style.setAttribute("href",$wf2.libpath+"webforms2.css");var parent=document.getElementsByTagName("head")[0];if(!parent)parent=document.getElementsByTagName("*")[0]; parent.insertBefore(style,parent.firstChild);$wf2.zeroPoint={};$wf2.zeroPoint.datetime=$wf2.parseISO8601("1970-01-01T00:00:00.0Z");$wf2.zeroPoint["datetime-local"]=$wf2.parseISO8601("1970-01-01T00:00:00.0");$wf2.zeroPoint.date=$wf2.zeroPoint.datetime;$wf2.zeroPoint.month=$wf2.zeroPoint.datetime;$wf2.zeroPoint.week=$wf2.parseISO8601("1970-W01");$wf2.zeroPoint.time=$wf2.zeroPoint.datetime;$wf2.xhr=null;if(window.XMLHttpRequest)$wf2.xhr=new XMLHttpRequest;else if(window.ActiveXObject)try{$wf2.xhr=new ActiveXObject("Msxml2.XMLHTTP")}catch(e){try{$wf2.xhr= new ActiveXObject("Microsoft.XMLHTTP")}catch(e){}}if($wf2.xhr){$wf2.prefillSelectElements();$wf2.prefillFormElements()}$wf2.initRepetitionBlocks();$wf2.initRepetitionTemplates();$wf2.initRepetitionButtons("add");$wf2.initRepetitionButtons("remove");$wf2.initRepetitionButtons("move-up");$wf2.initRepetitionButtons("move-down");$wf2.updateAddButtons();$wf2.updateMoveButtons();if(document.addEventListener){document.addEventListener("mousedown",$wf2.clearInvalidIndicators,false);document.addEventListener("keydown", $wf2.clearInvalidIndicators,false)}else if(document.attachEvent){document.attachEvent("onmousedown",$wf2.clearInvalidIndicators);document.attachEvent("onkeydown",$wf2.clearInvalidIndicators)}$wf2.initNonRepetitionFunctionality();for(var i=0;i<$wf2.callAfterDOMContentLoaded.length;i++)$wf2.callAfterDOMContentLoaded[i]()},prefillSelectElements:function(){var select,selects=$wf2.getElementsByTagNames.apply(document.documentElement,["select","datalist"]);for(var i=0;select=selects[i];i++){var xmlDoc= $wf2.loadDataURI(select);if(xmlDoc&&xmlDoc.documentElement&&/:?\bselect$/i.test(xmlDoc.documentElement.nodeName)&&xmlDoc.documentElement.namespaceURI=="http://www.w3.org/1999/xhtml"){var root=xmlDoc.documentElement;if(root.getAttribute("type")!="incremental")while(select.lastChild)select.removeChild(select.lastChild);node=root.firstChild;while(node){select.appendChild($wf2.cloneNode(node));node=node.nextSibling}}}},prefillFormElements:function(){var frm,frms=document.getElementsByTagName("form"); for(var i=0;frm=frms[i];i++){var xmlDoc=$wf2.loadDataURI(frm);if(xmlDoc&&xmlDoc.documentElement&&/:?\bformdata$/.test(xmlDoc.documentElement.nodeName)&&xmlDoc.documentElement.namespaceURI=="http://n.whatwg.org/formdata"){var rt;var root=xmlDoc.documentElement;if(root.getAttribute("type")!="incremental")frm.reset();var clr,clrs=root.getElementsByTagName("clear");for(j=0;clr=clrs[j];j++)if(clr.namespaceURI=="http://n.whatwg.org/formdata"&&clr.parentNode==root&&!clr.firstChild&&(rt=document.getElementById(clr.getAttribute("template")))&& rt.getAttribute("repeat")=="template"){var attr,node,next;node=rt.parentNode.firstChild;while(node)if(node.nodeType==1&&(attr=node.getAttributeNode("repeat"))&&attr.value!="template"){next=node.nextSibling;node.parentNode.removeChild(node);node=next}else node=node.nextSibling}var index,rpt,rpts=root.getElementsByTagName("repeat");for(j=0;rpt=rpts[j];j++)if(rpt.namespaceURI=="http://n.whatwg.org/formdata"&&rpt.parentNode==root&&!rpt.firstChild&&(rt=document.getElementById(rpt.getAttribute("template")))&& rt.getAttribute("repeat")=="template"&&/^-?\d+$/.test(index=rpt.getAttribute("index"))){var hasIndex,attr,node,next;node=rt.parentNode.firstChild;while(node){if(node.nodeType==1&&(attr=node.getAttributeNode("repeat"))&&attr.value==index){hasIndex=true;break}node=node.nextSibling}if(!hasIndex)$wf2.addRepetitionBlockByIndex.apply(rt,[null,index])}var fld,flds=root.getElementsByTagName("field");var formElements=$wf2.getFormElements.apply(frm);for(j=0;fld=flds[j];j++){var indexAttr=fld.getAttributeNode("index"); 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this.wf2Initialized=true;this.style.display="none";this.repetitionType=RepetitionElement.REPETITION_TEMPLATE;if(!this.repetitionIndex)this.repetitionIndex=0;this.repetitionTemplate=null;if(!this.repetitionBlocks)this.repetitionBlocks=[];var _attr;this.repeatStart=/^\d+$/.test(_attr=this.getAttribute("repeat-start"))?parseInt(_attr):1;this.repeatMin=/^\d+$/.test(_attr=this.getAttribute("repeat-min"))?parseInt(_attr):0;this.repeatMax=/^\d+$/.test(_attr=this.getAttribute("repeat-max"))?parseInt(_attr): Number.MAX_VALUE;if(!this.addRepetitionBlock)this.addRepetitionBlock=function(refNode,index){return $wf2.addRepetitionBlock.apply(this,[refNode,index])};if(!this.addRepetitionBlockByIndex)this.addRepetitionBlockByIndex=this.addRepetitionBlock;var frm=this;while(frm=frm.parentNode)if(frm.nodeName.toLowerCase()=="form")break;var _templateElements;if(frm&&(_templateElements=$wf2.getElementsByTagNames.apply(this,["button","input","select","textarea","isindex"])).length)for(var el,i=0;el=_templateElements[i];i++)el.disabled= true;var attr,sibling=this.parentNode.firstChild;while(sibling&&sibling!=this){if(sibling.nodeType==1&&(attr=sibling.getAttributeNode("repeat"))&&/^-?\d+$/.test(attr.value)&&!sibling.getAttribute("repeat-template")){sibling.repetitionTemplate=this;sibling.setAttribute("repeat-template",this.id);this.repetitionBlocks.push(sibling)}sibling=sibling.nextSibling}for(var i=0;i<this.repeatStart||this.repetitionBlocks.length<this.repeatMin;i++)if(!this.addRepetitionBlock())break;$wf2.repetitionTemplates.push(this); this.wf2Initialized=true},initRepetitionTemplates:function(parentNode){var repetitionTemplates=$wf2.getElementsByTagNamesAndAttribute.apply(parentNode||document.documentElement,[["*"],"repeat","template"]);for(var i=0,rt;i<repetitionTemplates.length;i++)$wf2.constructRepetitionTemplate.apply(repetitionTemplates[i])},constructRepetitionBlock:function(){if(this.wf2Initialized)return;this.style.display="";this.repetitionType=RepetitionElement.REPETITION_BLOCK;var _attr;this.repetitionIndex=/^\d+$/.test(_attr= this.getAttribute("repeat"))?parseInt(_attr):0;this.repetitionBlocks=null;this.repetitionTemplate=null;var node;if((node=document.getElementById(this.getAttribute("repeat-template")))&&node.getAttribute("repeat")=="template")this.repetitionTemplate=node;else{node=this;while(node=node.nextSibling)if(node.nodeType==1&&node.getAttribute("repeat")=="template"){this.repetitionTemplate=node;break}}if(!this.removeRepetitionBlock)this.removeRepetitionBlock=function(){return $wf2.removeRepetitionBlock.apply(this)}; if(!this.moveRepetitionBlock)this.moveRepetitionBlock=function(distance){return $wf2.moveRepetitionBlock.apply(this,[distance])};this.wf2Initialized=true},initRepetitionBlocks:function(parentNode){var repetitionBlocks=$wf2.getElementsByTagNamesAndAttribute.apply(parentNode||document.documentElement,[["*"],"repeat","template",true]);for(var i=0;i<repetitionBlocks.length;i++)$wf2.constructRepetitionBlock.apply(repetitionBlocks[i])},repetitionButtonDefaultLabels:{add:"Add",remove:"Remove","move-up":"Move-up", "move-down":"Move-down"},constructRepetitionButton:function(btnType){if(this.wf2Initialized)return;this.htmlTemplate=$wf2.getHtmlTemplate(this);if(!this.firstChild)this.appendChild(document.createTextNode($wf2.repetitionButtonDefaultLabels[btnType]));if(btnType!="add")this.disabled=!$wf2.getRepetitionBlock(this);else{var rb;this.disabled=!((rb=$wf2.getRepetitionBlock(this))&&rb.repetitionTemplate||this.htmlTemplate)}if(this.addEventListener)this.addEventListener("click",$wf2.clickRepetitionButton, false);else if(this.attachEvent)this.attachEvent("onclick",$wf2.clickRepetitionButton);else this.onclick=$wf2.clickRepetitionButton;this.wf2Initialized=true},initRepetitionButtons:function(btnType,parent){var i;if(!parent)parent=document.documentElement;var inpts=$wf2.getElementsByTagNamesAndAttribute.apply(parent,[["input"],"type",btnType]);for(i=0;i<inpts.length;i++){var btn=document.createElement("button");for(var j=0,attr;attr=inpts[i].attributes[j];j++)btn.setAttribute(attr.nodeName,inpts[i].getAttribute(attr.nodeName)); inpts[i].parentNode.replaceChild(btn,inpts[i]);btn=null}var btns=$wf2.getElementsByTagNamesAndAttribute.apply(parent,[["button"],"type",btnType]);for(var i=0;i<btns.length;i++)$wf2.constructRepetitionButton.apply(btns[i],[btnType])},clickRepetitionButton:function(e){if(e&&e.preventDefault)e.preventDefault();var btn;if(e&&e.target)btn=e.target;else if(window.event)btn=event.srcElement;else if(this.nodeName.toLowerCase()=="button")btn=this;var btnType=String(btn.getAttribute("type")).toLowerCase(); if(btn.onclick){btn._onclick=btn.onclick;btn.removeAttribute("onclick");btn.onclick=null}if(btn.returnValue!==undefined&&!btn.returnValue){btn.returnValue=undefined;return false}if(btn._onclick&&btn.returnValue===undefined){btn.returnValue=btn._onclick(e);if(btn.returnValue!==undefined&&!btn.returnValue){btn.returnValue=undefined;return false}}btn.returnValue=undefined;var block;if(btnType!="add"){block=$wf2.getRepetitionBlock(btn);this.disabled=!block;if(block)if(btnType.indexOf("move")===0){block._clickedMoveBtn= btn;block.moveRepetitionBlock(btnType=="move-up"?-1:1)}else if(btnType=="remove")block.removeRepetitionBlock()}else{var rt;if(btn.htmlTemplate)rt=btn.htmlTemplate;else{block=$wf2.getRepetitionBlock(btn);if(block&&block.repetitionTemplate)rt=block.repetitionTemplate}if(rt)rt.addRepetitionBlock();else btn.disabled=true}return false},addRepetitionBlock:function(refNode,index){if(this.getAttribute("repeat")!="template")throw $wf2.DOMException(9);if(!this.repetitionBlocks)this.repetitionBlocks=[];if(!this.repetitionIndex)this.repetitionIndex= 0;if(!this.repeatMin)this.repeatMin=0;if(!this.repeatMax)this.repeatMax=Number.MAX_VALUE;if(!this.repeatStart)this.repeatStart=1;if(this.parentNode==null)return null;var node=this;while(node=node.parentNode)if(node.nodeType==1&&node.getAttribute("repeat")=="template")return false;var sibling=this.previousSibling;var currentBlockCount=0;while(sibling!=null){if(sibling.nodeType==1){var repeatAttr,repeatTemplateAttr;repeat=parseInt(sibling.getAttribute("repeat"));repeatTemplateAttr=sibling.getAttributeNode("repeat-template"); if(!isNaN(repeat)&&(!repeatTemplateAttr||repeatTemplateAttr.value==this.id)){this.repetitionIndex=Math.max(this.repetitionIndex,repeat+1);currentBlockCount++}}sibling=sibling.previousSibling}if(this.repeatMax<=currentBlockCount)return null;if(index!==undefined&&index>this.repetitionIndex)this.repetitionIndex=index;var IDAttrName=this.getAttribute("id")?"id":this.getAttribute("name")?"name":"";var IDAttrValue=this.getAttribute(IDAttrName);var block;var replaceValue=this.repetitionIndex;var reTemplateName, processAttr;if(IDAttrValue&&!/\u005B|\u02D1|\u005D|\u00B7/.test(IDAttrValue)){reTemplateName=new RegExp("(\\[|\u02d1)"+IDAttrValue+"(\\]|\u00b7)","g");processAttr=function(attrVal){if(!attrVal)return attrVal;attrVal=attrVal.toString();if(attrVal.indexOf("\ufeff")===0)return attrVal.replace(/^\uFEFF/,"");return attrVal.replace(reTemplateName,replaceValue)}}block=$wf2.cloneNode(this,processAttr);block.wf2Initialized=false;reTemplateName=null;block.setAttribute("repeat",this.repetitionIndex);block.removeAttribute("repeat-min"); block.removeAttribute("repeat-max");block.removeAttribute("repeat-start");if(IDAttrName){block.setAttribute("repeat-template",IDAttrValue);block.removeAttribute(IDAttrName)}if(!refNode){refNode=this;while(refNode.previousSibling&&refNode.previousSibling.repetitionType!=RepetitionElement.REPETITION_BLOCK)refNode=refNode.previousSibling;this.parentNode.insertBefore(block,refNode);this.repetitionBlocks.push(block)}else{refNode.parentNode.insertBefore(block,refNode.nextSibling);this.repetitionBlocks.push(block); if($wf2.sortNodes)this.repetitionBlocks.sort($wf2.sortNodes)}this.repetitionIndex++;$wf2.constructRepetitionBlock.apply(block);$wf2.initRepetitionTemplates(block);$wf2.initRepetitionButtons("add",block);$wf2.initRepetitionButtons("remove",block);$wf2.initRepetitionButtons("move-up",block);$wf2.initRepetitionButtons("move-down",block);if($wf2.isInitialized){$wf2.updateAddButtons(this);$wf2.updateMoveButtons(this.parentNode)}$wf2.initNonRepetitionFunctionality(block);var addEvt;try{if(document.createEvent)addEvt= document.createEvent("UIEvents");else if(document.createEventObject)addEvt=document.createEventObject();RepetitionEvent._upgradeEvent.apply(addEvt);addEvt.initRepetitionEvent("added",true,false,block);if(this.dispatchEvent)this.dispatchEvent(addEvt);else if(this.fireEvent);}catch(err){addEvt=new Object;RepetitionEvent._upgradeEvent.apply(addEvt);addEvt.initRepetitionEvent("added",true,false,block)}var handlerAttr;if((handlerAttr=this.getAttribute("onadded"))&&(!this.onadded||typeof this.onadded!= "function"))this.onadded=new Function("event",handlerAttr);else if((handlerAttr=this.getAttribute("onadd"))&&(!this.onadd||typeof this.onadd!="function"))this.onadd=new Function("event",handlerAttr);try{if(this.onadded)this.onadded.apply(this,[addEvt]);else if(this.onadd)this.onadd.apply(this,[addEvt])}catch(err){setTimeout(function(){throw err;},0)}return block},addRepetitionBlockByIndex:function(refNode,index){$wf2.addRepetitionBlock.apply(this,[refNode,index])},removeRepetitionBlock:function(){if(this.repetitionType!= RepetitionElement.REPETITION_BLOCK)throw $wf2.DOMException(9);var parentNode=this.parentNode;var block=parentNode.removeChild(this);$wf2.updateMoveButtons(parentNode);if(this.repetitionTemplate!=null)for(var i=0;i<this.repetitionTemplate.repetitionBlocks.length;i++)if(this.repetitionTemplate.repetitionBlocks[i]==this){this.repetitionTemplate.repetitionBlocks.splice(i,1);break}if(this.repetitionTemplate!=null){var removeEvt;try{if(document.createEvent)removeEvt=document.createEvent("UIEvents");else if(document.createEventObject)removeEvt= document.createEventObject();RepetitionEvent._upgradeEvent.apply(removeEvt);removeEvt.initRepetitionEvent("removed",true,false,this);if(this.repetitionTemplate.dispatchEvent)this.repetitionTemplate.dispatchEvent(removeEvt);else if(this.repetitionTemplate.fireEvent);}catch(err){removeEvt=new Object;RepetitionEvent._upgradeEvent.apply(removeEvt);removeEvt.initRepetitionEvent("removed",true,false,this)}var handlerAttr;if((handlerAttr=this.repetitionTemplate.getAttribute("onremoved"))&&(!this.repetitionTemplate.onremoved|| typeof this.repetitionTemplate.onremoved!="function"))this.repetitionTemplate.onremoved=new Function("event",handlerAttr);else if((handlerAttr=this.repetitionTemplate.getAttribute("onremove"))&&(!this.repetitionTemplate.onremove||typeof this.repetitionTemplate.onremove!="function"))this.repetitionTemplate.onremove=new Function("event",handlerAttr);try{if(this.repetitionTemplate.onremoved)this.repetitionTemplate.onremoved.apply(this,[removeEvt]);else if(this.repetitionTemplate.onremove)this.repetitionTemplate.onremove.apply(this, [removeEvt])}catch(err){setTimeout(function(){throw err;},0)}}if(this.repetitionTemplate!=null){if(this.repetitionTemplate.repetitionBlocks.length<this.repetitionTemplate.repeatMin&&this.repetitionTemplate.repetitionBlocks.length<this.repetitionTemplate.repeatMax)this.repetitionTemplate.addRepetitionBlock();if(this.repetitionTemplate.repetitionBlocks.length<this.repetitionTemplate.repeatMax){var addBtns=$wf2.getElementsByTagNamesAndAttribute.apply(document.documentElement,[["button"],"type","add"]); for(i=0;i<addBtns.length;i++)if(addBtns[i].htmlTemplate==this.repetitionTemplate)addBtns[i].disabled=false}}},moveRepetitionBlock:function(distance){if(this.repetitionType!=RepetitionElement.REPETITION_BLOCK)throw $wf2.DOMException(9);if(distance==0||this.parentNode==null)return;var target=this;if(this.repetitionTemplate){var pos=0;var rp=this.repetitionTemplate.repetitionBlocks;while(pos<rp.length&&rp[pos]!=this)pos++;rp.splice(pos,1);rp.splice(distance<0?Math.max(pos+distance,0):Math.min(pos+distance, rp.length),0,this)}if(distance<0)while(distance!=0&&target.previousSibling&&target.previousSibling.repetitionType!=RepetitionElement.REPETITION_TEMPLATE){target=target.previousSibling;if(target.repetitionType==RepetitionElement.REPETITION_BLOCK)distance++}else{while(distance!=0&&target.nextSibling&&target.nextSibling.repetitionType!=RepetitionElement.REPETITION_TEMPLATE){target=target.nextSibling;if(target.repetitionType==RepetitionElement.REPETITION_BLOCK)distance--}target=target.nextSibling}this.parentNode.insertBefore(this, target);if(this._clickedMoveBtn){this._clickedMoveBtn.focus();this._clickedMoveBtn=null}$wf2.updateMoveButtons(this.parentNode);if(this.repetitionTemplate!=null){var moveEvt;try{if(document.createEvent)moveEvt=document.createEvent("UIEvents");else if(document.createEventObject)moveEvt=document.createEventObject();RepetitionEvent._upgradeEvent.apply(moveEvt);moveEvt.initRepetitionEvent("moved",true,false,this);if(this.repetitionTemplate.dispatchEvent)this.repetitionTemplate.dispatchEvent(moveEvt); else if(this.repetitionTemplate.fireEvent);}catch(err){moveEvt=new Object;RepetitionEvent._upgradeEvent.apply(moveEvt);moveEvt.initRepetitionEvent("moved",true,false,this)}var handlerAttr;if((handlerAttr=this.repetitionTemplate.getAttribute("onmoved"))&&(!this.repetitionTemplate.onmoved||typeof this.repetitionTemplate.onmoved!="function"))this.repetitionTemplate.onmoved=new Function("event",handlerAttr);else if(handlerAttr=this.repetitionTemplate.getAttribute("onmove")){if(!this.repetitionTemplate.onmove|| typeof this.repetitionTemplate.onmove!="function")this.repetitionTemplate.onmove=new Function("event",handlerAttr);var funcMatches;if(typeof handlerAttr=="function"&&(funcMatches=handlerAttr.toString().match(/^\s*function\s+anonymous\(\s*\)\s*\{((?:.|\n)+)\}\s*$/)))this.repetitionTemplate.onmove=new Function("event",funcMatches[1])}try{if(this.repetitionTemplate.onmoved)this.repetitionTemplate.onmoved.apply(this,[moveEvt]);else if(this.repetitionTemplate.onmove)this.repetitionTemplate.onmove.apply(this, [moveEvt])}catch(err){setTimeout(function(){throw err;},0)}}},getRepetitionBlock:function(node){while(node=node.parentNode)if(node.repetitionType==RepetitionElement.REPETITION_BLOCK)return node;return null},getHtmlTemplate:function(button){var attr=button.getAttribute("template");var node;if(attr&&(node=document.getElementById(attr))&&node.getAttribute("repeat")=="template")return node;return null},updateAddButtons:function(rt){var repetitionTemplates=rt?[rt]:$wf2.repetitionTemplates;var btns=$wf2.getElementsByTagNamesAndAttribute.apply(document.documentElement, [["button"],"type","add"]);for(var i=0;i<btns.length;i++)for(var t,j=0;t=repetitionTemplates[j];j++)if(btns[i].htmlTemplate==t&&t.repetitionBlocks.length>=t.repeatMax)btns[i].disabled=true},updateMoveButtons:function(parent){var i;var rbs=[];if(!parent){var visitedParents=[];rbs=$wf2.getElementsByTagNamesAndAttribute.apply(document.documentElement,[["*"],"repeat","template",true]);for(i=0;block=rbs[i];i++)if(!$wf2.arrayHasItem(visitedParents,block.parentNode)){$wf2.updateMoveButtons(block.parentNode); 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