/*
 * HTML5 Forms Chapter JavaScript Library
 * http://thecssninja.com/javascript/H5F
 *
 * Copyright (c) 2010 Ryan Seddon - http://thecssninja.com/
 * Dual-licensed under the BSD and MIT licenses.
 * http://thecssninja.com/H5F/license.txt
 */
var H5F=H5F||{};(function(d){var field=d.createElement("input"),emailPatt=new RegExp("([a-z0-9_.-]+)@([0-9a-z.-]+).([a-z.]{2,6})","i"),urlPatt=new RegExp("[a-z][-\.+a-z]*:\/\/","i"),usrPatt,curEvt,args;H5F.setup=function(form,settings){var isCollection=!form.nodeType||false;var opts={validClass:"valid",invalidClass:"error",requiredClass:"required"};if(typeof settings==="object"){for(var i in opts){if(typeof settings[i]==="undefined"){settings[i]=opts[i];}}}
args=settings||opts;if(isCollection){for(var k=0,len=form.length;k<len;k++){H5F.validation(form[k]);}}else{H5F.validation(form);}};H5F.validation=function(form){var f=form.elements,flen=f.length,isRequired;H5F.listen(form,"invalid",H5F.checkField,true);H5F.listen(form,"blur",H5F.checkField,true);H5F.listen(form,"input",H5F.checkField,true);H5F.listen(form,"focus",H5F.checkField,true);if(!H5F.support()){form.checkValidity=function(){return H5F.checkValidity(form);};while(flen--){isRequired=!!(f[flen].attributes["required"]);if(f[flen].nodeName!=="FIELDSET"&&isRequired){H5F.validity(f[flen]);}}}};H5F.validity=function(el){var elem=el,missing=H5F.valueMissing(elem),type=elem.getAttribute("type"),pattern=elem.getAttribute("pattern"),placeholder=elem.getAttribute("placeholder"),isType=/^(email|url|password)$/i,fType=((isType.test(type))?type:((pattern)?pattern:false)),patt=H5F.pattern(elem,fType),step=H5F.range(elem,"step"),min=H5F.range(elem,"min"),max=H5F.range(elem,"max");elem.validity={patternMismatch:patt,rangeOverflow:max,rangeUnderflow:min,stepMismatch:step,valid:(!missing&&!patt&&!step&&!min&&!max),valueMissing:missing};if(placeholder&&curEvt!=="input"){H5F.placeholder(elem);}
elem.checkValidity=function(){return H5F.checkValidity(elem);};};H5F.checkField=function(e){var el=H5F.getTarget(e)||e,events=/^(input|focusin|focus)$/i;curEvt=e.type;if(!H5F.support()){H5F.validity(el);}
if(el.validity.valid){H5F.removeClass(el,[args.invalidClass,args.requiredClass]);H5F.addClass(el,args.validClass);}else if(!events.test(curEvt)){if(el.validity.valueMissing){H5F.removeClass(el,[args.invalidClass,args.validClass]);H5F.addClass(el,args.requiredClass);}else{H5F.removeClass(el,[args.validClass,args.requiredClass]);H5F.addClass(el,args.invalidClass);}}else if(el.validity.valueMissing){H5F.removeClass(el,[args.requiredClass,args.invalidClass,args.validClass]);}};H5F.checkValidity=function(el){var f,ff,isRequired,invalid=false;if(el.nodeName==="FORM"){f=el.elements;for(var i=0,len=f.length;i<len;i++){ff=f[i];isRequired=!!(ff.attributes["required"]);if(ff.nodeName!=="FIELDSET"&&isRequired){H5F.checkField(ff);if(!ff.validity.valid&&!invalid){ff.focus();invalid=true;}}}
return!invalid;}else{H5F.checkField(el);return el.validity.valid;}};H5F.support=function(){return(H5F.isHostMethod(field,"validity")&&H5F.isHostMethod(field,"checkValidity"));};H5F.pattern=function(el,type){if(type==="email"){return!emailPatt.test(el.value);}else if(type==="url"){return!urlPatt.test(el.value);}else if(!type||type==="password"){return false;}else{usrPatt=new RegExp(type);return!usrPatt.test(el.value);}};H5F.placeholder=function(el){var placeholder=el.getAttribute("placeholder"),focus=/^(focus|focusin)$/i,node=/^(input|textarea)$/i,isNative=!!("placeholder"in field);if(!isNative&&node.test(el.nodeName)){if(el.value===""){el.value=placeholder;}else if(el.value===placeholder&&focus.test(curEvt)){el.value="";}}};H5F.range=function(el,type){var min=parseInt(el.getAttribute("min"),10)||0,max=parseInt(el.getAttribute("max"),10)||false,step=parseInt(el.getAttribute("step"),10)||1,val=parseInt(el.value,10),mismatch=(val-min)%step;if(!H5F.valueMissing(el)&&!isNaN(val)){if(type==="step"){return(el.getAttribute("step"))?(mismatch!==0):false;}else if(type==="min"){return(el.getAttribute("min"))?(val<min):false;}else if(type==="max"){return(el.getAttribute("max"))?(val>max):false;}}else if(el.getAttribute("type")==="number"){return true;}else{return false;}};H5F.required=function(el){var required=!!(el.attributes["required"]);return(required)?H5F.valueMissing(el):false;};H5F.valueMissing=function(el){var placeholder=el.getAttribute("placeholder");return!!(el.value===""||el.value===placeholder);};H5F.listen=function(node,type,fn,capture){if(H5F.isHostMethod(window,"addEventListener")){node.addEventListener(type,fn,capture);}else if(H5F.isHostMethod(window,"attachEvent")&&typeof window.event!=="undefined"){if(type==="blur"){type="focusout";}else if(type==="focus"){type="focusin";}
node.attachEvent("on"+type,fn);}};H5F.preventActions=function(evt){evt=evt||window.event;if(evt.stopPropagation&&evt.preventDefault){evt.stopPropagation();evt.preventDefault();}else{evt.cancelBubble=true;evt.returnValue=false;}};H5F.getTarget=function(evt){evt=evt||window.event;return evt.target||evt.srcElement;};H5F.addClass=function(e,c){var re;if(!e.className){e.className=c;}
else{re=new RegExp('(^|\\s)'+c+'(\\s|$)');if(!re.test(e.className)){e.className+=' '+c;}}};H5F.removeClass=function(e,c){var re,m,arr=(typeof c==="object")?c.length:1,len=arr;if(e.className){if(e.className==c){e.className='';}
else{while(arr--){re=new RegExp('(^|\\s)'+((len>1)?c[arr]:c)+'(\\s|$)');m=e.className.match(re);if(m&&m.length==3){e.className=e.className.replace(re,(m[1]&&m[2])?' ':'');}}}}};H5F.isHostMethod=function(o,m){var t=typeof o[m],reFeaturedMethod=new RegExp('^function|object$','i');return!!((reFeaturedMethod.test(t)&&o[m])||t=='unknown');};})(document);