//DOM-Extension helper
jQuery.webshims.register('dom-extend', function($, webshims, window, document, undefined){
	"use strict";
	//shortcus
	var modules = webshims.modules;
	var listReg = /\s*,\s*/;
		
	//proxying attribute
	var olds = {};
	var havePolyfill = {};
	var extendedProps = {};
	var extendQ = {};
	var modifyProps = {};
	
	var oldVal = $.fn.val;
	var singleVal = function(elem, name, val, pass, _argless){
		return (_argless) ? oldVal.call($(elem)) : oldVal.call($(elem), val);
	};
	$.fn.val = function(val){
		var elem = this[0];
		if(arguments.length && val == null){
			val = '';
		}
		if(!arguments.length){
			if(!elem || elem.nodeType !== 1){return oldVal.call(this);}
			return $.prop(elem, 'value', val, 'val', true);
		}
		if($.isArray(val)){
			return oldVal.apply(this, arguments);
		}
		var isFunction = $.isFunction(val);
		return this.each(function(i){
			elem = this;
			if(elem.nodeType === 1){
				if(isFunction){
					var genVal = val.call( elem, i, $.prop(elem, 'value', undefined, 'val', true));
					if(genVal == null){
						genVal = '';
					}
					$.prop(elem, 'value', genVal, 'val') ;
				} else {
					$.prop(elem, 'value', val, 'val');
				}
			}
		});
	};
	
	var dataID = '_webshimsLib'+ (Math.round(Math.random() * 1000));
	var elementData = function(elem, key, val){
		elem = elem.jquery ? elem[0] : elem;
		if(!elem){return val || {};}
		var data = $.data(elem, dataID);
		if(val !== undefined){
			if(!data){
				data = $.data(elem, dataID, {});
			}
			if(key){
				data[key] = val;
			}
		}
		
		return key ? data && data[key] : data;
	};


	[{name: 'getNativeElement', prop: 'nativeElement'}, {name: 'getShadowElement', prop: 'shadowElement'}, {name: 'getShadowFocusElement', prop: 'shadowFocusElement'}].forEach(function(data){
		$.fn[data.name] = function(){
			return this.map(function(){
				var shadowData = elementData(this, 'shadowData');
				return shadowData && shadowData[data.prop] || this;
			});
		};
	});
	
	
	['removeAttr', 'prop', 'attr'].forEach(function(type){
		olds[type] = $[type];
		$[type] = function(elem, name, value, pass, _argless){
			var isVal = (pass == 'val');
			var oldMethod = !isVal ? olds[type] : singleVal;
			if( !elem || !havePolyfill[name] || elem.nodeType !== 1 || (!isVal && pass && type == 'attr' && $.attrFn[name]) ){
				return oldMethod(elem, name, value, pass, _argless);
			}
			
			var nodeName = (elem.nodeName || '').toLowerCase();
			var desc = extendedProps[nodeName];
			var curType = (type == 'attr' && (value === false || value === null)) ? 'removeAttr' : type;
			var propMethod;
			var oldValMethod;
			var ret;
			
			
			if(!desc){
				desc = extendedProps['*'];
			}
			if(desc){
				desc = desc[name];
			}
			
			if(desc){
				propMethod = desc[curType];
			}
			
			if(propMethod){
				if(name == 'value'){
					oldValMethod = propMethod.isVal;
					propMethod.isVal = isVal;
				}
				if(curType === 'removeAttr'){
					return propMethod.value.call(elem);	
				} else if(value === undefined){
					return (propMethod.get) ? 
						propMethod.get.call(elem) : 
						propMethod.value
					;
				} else if(propMethod.set) {
					if(type == 'attr' && value === true){
						value = name;
					}
					
					ret = propMethod.set.call(elem, value);
				}
				if(name == 'value'){
					propMethod.isVal = oldValMethod;
				}
			} else {
				ret = oldMethod(elem, name, value, pass, _argless);
			}
			if((value !== undefined || curType === 'removeAttr') && modifyProps[nodeName] && modifyProps[nodeName][name]){
				
				var boolValue;
				if(curType == 'removeAttr'){
					boolValue = false;
				} else if(curType == 'prop'){
					boolValue = !!(value);
				} else {
					boolValue = true;
				}
				
				modifyProps[nodeName][name].forEach(function(fn){
					if(!fn.only || (fn.only = 'prop' && type == 'prop') || (fn.only == 'attr' && type != 'prop')){
						fn.call(elem, value, boolValue, (isVal) ? 'val' : curType, type);
					}
				});
			}
			return ret;
		};
		
		extendQ[type] = function(nodeName, prop, desc){
			
			if(!extendedProps[nodeName]){
				extendedProps[nodeName] = {};
			}
			if(!extendedProps[nodeName][prop]){
				extendedProps[nodeName][prop] = {};
			}
			var oldDesc = extendedProps[nodeName][prop][type];
			var getSup = function(propType, descriptor, oDesc){
				if(descriptor && descriptor[propType]){
					return descriptor[propType];
				}
				if(oDesc && oDesc[propType]){
					return oDesc[propType];
				}
				if(type == 'prop' && prop == 'value'){
					return function(value){
						var elem = this;
						return (desc.isVal) ? 
							singleVal(elem, prop, value, false, (arguments.length === 0)) : 
							olds[type](elem, prop, value)
						;
					};
				}
				if(type == 'prop' && propType == 'value' && desc.value.apply){
					return  function(value){
						var sup = olds[type](this, prop);
						if(sup && sup.apply){
							sup = sup.apply(this, arguments);
						} 
						return sup;
					};
				}
				return function(value){
					return olds[type](this, prop, value);
				};
			};
			extendedProps[nodeName][prop][type] = desc;
			if(desc.value === undefined){
				if(!desc.set){
					desc.set = desc.writeable ? 
						getSup('set', desc, oldDesc) : 
						(webshims.cfg.useStrict && prop == 'prop') ? 
							function(){throw(prop +' is readonly on '+ nodeName);} : 
							$.noop
					;
				}
				if(!desc.get){
					desc.get = getSup('get', desc, oldDesc);
				}
				
			}
			
			['value', 'get', 'set'].forEach(function(descProp){
				if(desc[descProp]){
					desc['_sup'+descProp] = getSup(descProp, oldDesc);
				}
			});
		};
		
	});
	
	//see also: https://github.com/lojjic/PIE/issues/40 | https://prototype.lighthouseapp.com/projects/8886/tickets/1107-ie8-fatal-crash-when-prototypejs-is-loaded-with-rounded-cornershtc
	var isExtendNativeSave = (!$.browser.msie || parseInt($.browser.version, 10) > 8);
	var extendNativeValue = (function(){
		var UNKNOWN = webshims.getPrototypeOf(document.createElement('foobar'));
		var has = Object.prototype.hasOwnProperty;
		return function(nodeName, prop, desc){
			var elem = document.createElement(nodeName);
			var elemProto = webshims.getPrototypeOf(elem);
			if( isExtendNativeSave && elemProto && UNKNOWN !== elemProto && ( !elem[prop] || !has.call(elem, prop) ) ){
				var sup = elem[prop];
				desc._supvalue = function(){
					if(sup && sup.apply){
						return sup.apply(this, arguments);
					}
					return sup;
				};
				elemProto[prop] = desc.value;
			} else {
				desc._supvalue = function(){
					var data = elementData(this, 'propValue');
					if(data && data[prop] && data[prop].apply){
						return data[prop].apply(this, arguments);
					}
					return data && data[prop];
				};
				initProp.extendValue(nodeName, prop, desc.value);
			}
			desc.value._supvalue = desc._supvalue;
		};
	})();
		
	var initProp = (function(){
		
		var initProps = {};
		
		webshims.addReady(function(context, contextElem){
			var nodeNameCache = {};
			var getElementsByName = function(name){
				if(!nodeNameCache[name]){
					nodeNameCache[name] = $(context.getElementsByTagName(name));
					if(contextElem[0] && $.nodeName(contextElem[0], name)){
						nodeNameCache[name] = nodeNameCache[name].add(contextElem);
					}
				}
			};
			
			
			$.each(initProps, function(name, fns){
				getElementsByName(name);
				if(!fns || !fns.forEach){
					webshims.warn('Error: with '+ name +'-property. methods: '+ fns);
					return;
				}
				fns.forEach(function(fn){
					nodeNameCache[name].each(fn);
				});
			});
			nodeNameCache = null;
		});
		
		var tempCache;
		var emptyQ = $([]);
		var createNodeNameInit = function(nodeName, fn){
			if(!initProps[nodeName]){
				initProps[nodeName] = [fn];
			} else {
				initProps[nodeName].push(fn);
			}
			if($.isDOMReady){
				(tempCache || $( document.getElementsByTagName(nodeName) )).each(fn);
			}
		};
		
		var elementExtends = {};
		return {
			createTmpCache: function(nodeName){
				if($.isDOMReady){
					tempCache = tempCache || $( document.getElementsByTagName(nodeName) );
				}
				return tempCache || emptyQ;
			},
			flushTmpCache: function(){
				tempCache = null;
			},
			content: function(nodeName, prop){
				createNodeNameInit(nodeName, function(){
					var val =  $.attr(this, prop);
					if(val != null){
						$.attr(this, prop, val);
					}
				});
			},
			createElement: function(nodeName, fn){
				createNodeNameInit(nodeName, fn);
			},
			extendValue: function(nodeName, prop, value){
				createNodeNameInit(nodeName, function(){
					$(this).each(function(){
						var data = elementData(this, 'propValue', {});
						data[prop] = this[prop];
						this[prop] = value;
					});
				});
			}
		};
	})();
		
	var createPropDefault = function(descs, removeType){
		if(descs.defaultValue === undefined){
			descs.defaultValue = '';
		}
		if(!descs.removeAttr){
			descs.removeAttr = {
				value: function(){
					descs[removeType || 'prop'].set.call(this, descs.defaultValue);
					descs.removeAttr._supvalue.call(this);
				}
			};
		}
		if(!descs.attr){
			descs.attr = {};
		}
	};
	
	$.extend(webshims, {

		getID: (function(){
			var ID = new Date().getTime();
			return function(elem){
				elem = $(elem);
				var id = elem.attr('id');
				if(!id){
					ID++;
					id = 'ID-'+ ID;
					elem.attr('id', id);
				}
				return id;
			};
		})(),
		extendUNDEFProp: function(obj, props){
			$.each(props, function(name, prop){
				if( !(name in obj) ){
					obj[name] = prop;
				}
			});
		},
		//http://www.w3.org/TR/html5/common-dom-interfaces.html#reflect
		createPropDefault: createPropDefault,
		data: elementData,
		moveToFirstEvent: (function(){
			var getData = $._data ? '_data' : 'data';
			return function(elem, eventType, bindType){
				var events = ($[getData](elem, 'events') || {})[eventType];
				var fn;
				
				if(events && events.length > 1){
					fn = events.pop();
					if(!bindType){
						bindType = 'bind';
					}
					if(bindType == 'bind' && events.delegateCount){
						events.splice( events.delegateCount, 0, fn);
					} else {
						events.unshift( fn );
					}
					
					
				}
				elem = null;
			};
		})(),
		addShadowDom: (function(){
			var resizeTimer;
			var lastHeight;
			var lastWidth;
			var handler;
			var docObserve = {
				init: false,
				start: function(){
					if(!this.init && document.body){
						this.init = true;
						this.height = $(document).height();
						this.width = $(document).width();
						setInterval(function(){
							var height = $(document).height();
							var width = $(document).width();
							if(height != docObserve.height || width != docObserve.width){
								docObserve.height = height;
								docObserve.width = width;
								handler({type: 'docresize'});
							}
						}, 600);
					}
				}
			};
			
			handler = function(e){
				clearTimeout(resizeTimer);
				resizeTimer = setTimeout(function(){
					if(e.type == 'resize'){
						var width = $(window).width();
						var height = $(window).width();
						if(height == lastHeight && width == lastWidth){
							return;
						}
						lastHeight = height;
						lastWidth = width;
						if(document.body){
							docObserve.height = $(document).height();
							docObserve.width = $(document).width();
						}
					}
					$.event.trigger('updateshadowdom');
				}, 40);
			};
			$(window).bind('resize', handler);
			
			$.event.customEvent.updateshadowdom = true;
			
			return function(nativeElem, shadowElem, opts){
				opts = opts || {};
				if(nativeElem.jquery){
					nativeElem = nativeElem[0];
				}
				if(shadowElem.jquery){
					shadowElem = shadowElem[0];
				}
				var nativeData = $.data(nativeElem, dataID) || $.data(nativeElem, dataID, {});
				var shadowData = $.data(shadowElem, dataID) || $.data(shadowElem, dataID, {});
				var shadowFocusElementData = {};
				if(!opts.shadowFocusElement){
					opts.shadowFocusElement = shadowElem;
				} else if(opts.shadowFocusElement){
					if(opts.shadowFocusElement.jquery){
						opts.shadowFocusElement = opts.shadowFocusElement[0];
					}
					shadowFocusElementData = $.data(opts.shadowFocusElement, dataID) || $.data(opts.shadowFocusElement, dataID, shadowFocusElementData);
				}
				
				nativeData.hasShadow = shadowElem;
				shadowFocusElementData.nativeElement = shadowData.nativeElement = nativeElem;
				shadowFocusElementData.shadowData = shadowData.shadowData = nativeData.shadowData = {
					nativeElement: nativeElem,
					shadowElement: shadowElem,
					shadowFocusElement: opts.shadowFocusElement
				};
				if(opts.shadowChilds){
					opts.shadowChilds.each(function(){
						elementData(this, 'shadowData', shadowData.shadowData);
					});
				}
				
				if(opts.data){
					shadowFocusElementData.shadowData.data = shadowData.shadowData.data = nativeData.shadowData.data = opts.data;
				}
				opts = null;
				webshims.ready('DOM', function(){
					docObserve.start();
				});
			}
		})(),
		propTypes: {
			standard: function(descs, name){
				createPropDefault(descs);
				if(descs.prop){return;}
				descs.prop = {
					set: function(val){
						descs.attr.set.call(this, ''+val);
					},
					get: function(){
						return descs.attr.get.call(this) || descs.defaultValue;
					}
				};
				
			},
			"boolean": function(descs, name){
				
				createPropDefault(descs);
				if(descs.prop){return;}
				descs.prop = {
					set: function(val){
						if(val){
							descs.attr.set.call(this, "");
						} else {
							descs.removeAttr.value.call(this);
						}
					},
					get: function(){
						return descs.attr.get.call(this) != null;
					}
				};
			},
			"src": (function(){
				var anchor = document.createElement('a');
				anchor.style.display = "none";
				return function(descs, name){
					
					createPropDefault(descs);
					if(descs.prop){return;}
					descs.prop = {
						set: function(val){
							descs.attr.set.call(this, val);
						},
						get: function(){
							var href = this.getAttribute(name);
							var ret;
							if(href == null){return '';}
							
							anchor.setAttribute('href', href+'' );
							
							if(!$.support.hrefNormalized){
								try {
									$(anchor).insertAfter(this);
									ret = anchor.getAttribute('href', 4);
								} catch(er){
									ret = anchor.getAttribute('href', 4);
								}
								$(anchor).detach();
							}
							return ret || anchor.href;
						}
					};
				};
			})(),
			enumarated: function(descs, name){
					
					createPropDefault(descs);
					if(descs.prop){return;}
					descs.prop = {
						set: function(val){
							descs.attr.set.call(this, val);
						},
						get: function(){
							var val = (descs.attr.get.call(this) || '').toLowerCase();
							if(!val || descs.limitedTo.indexOf(val) == -1){
								val = descs.defaultValue;
							}
							return val;
						}
					};
				}
			
//			,unsignedLong: $.noop
//			,"doubble": $.noop
//			,"long": $.noop
//			,tokenlist: $.noop
//			,settableTokenlist: $.noop
		},
		reflectProperties: function(nodeNames, props){
			if(typeof props == 'string'){
				props = props.split(listReg);
			}
			props.forEach(function(prop){
				webshims.defineNodeNamesProperty(nodeNames, prop, {
					prop: {
						set: function(val){
							$.attr(this, prop, val);
						},
						get: function(){
							return $.attr(this, prop) || '';
						}
					}
				});
			});
		},
		defineNodeNameProperty: function(nodeName, prop, descs){
			havePolyfill[prop] = true;
						
			if(descs.reflect){
				webshims.propTypes[descs.propType || 'standard'](descs, prop);
			}
			
			['prop', 'attr', 'removeAttr'].forEach(function(type){
				var desc = descs[type];
				if(desc){
					if(type === 'prop'){
						desc = $.extend({writeable: true}, desc);
					} else {
						desc = $.extend({}, desc, {writeable: true});
					}
						
					extendQ[type](nodeName, prop, desc);
					if(nodeName != '*' && webshims.cfg.extendNative && type == 'prop' && desc.value && $.isFunction(desc.value)){
						extendNativeValue(nodeName, prop, desc);
					}
					descs[type] = desc;
				}
			});
			if(descs.initAttr){
				initProp.content(nodeName, prop);
			}
			return descs;
		},
		
		defineNodeNameProperties: function(name, descs, propType, _noTmpCache){
			var olddesc;
			for(var prop in descs){
				if(!_noTmpCache && descs[prop].initAttr){
					initProp.createTmpCache(name);
				}
				if(propType){
					if(descs[prop][propType]){
						//webshims.log('override: '+ name +'['+prop +'] for '+ propType);
					} else {
						descs[prop][propType] = {};
						['value', 'set', 'get'].forEach(function(copyProp){
							if(copyProp in descs[prop]){
								descs[prop][propType][copyProp] = descs[prop][copyProp];
								delete descs[prop][copyProp];
							}
						});
					}
				}
				descs[prop] = webshims.defineNodeNameProperty(name, prop, descs[prop]);
			}
			if(!_noTmpCache){
				initProp.flushTmpCache();
			}
			return descs;
		},
		
		createElement: function(nodeName, create, descs){
			var ret;
			if($.isFunction(create)){
				create = {
					after: create
				};
			}
			initProp.createTmpCache(nodeName);
			if(create.before){
				initProp.createElement(nodeName, create.before);
			}
			if(descs){
				ret = webshims.defineNodeNameProperties(nodeName, descs, false, true);
			}
			if(create.after){
				initProp.createElement(nodeName, create.after);
			}
			initProp.flushTmpCache();
			return ret;
		},
		onNodeNamesPropertyModify: function(nodeNames, props, desc, only){
			if(typeof nodeNames == 'string'){
				nodeNames = nodeNames.split(listReg);
			}
			if($.isFunction(desc)){
				desc = {set: desc};
			}
			
			nodeNames.forEach(function(name){
				if(!modifyProps[name]){
					modifyProps[name] = {};
				}
				if(typeof props == 'string'){
					props = props.split(listReg);
				}
				if(desc.initAttr){
					initProp.createTmpCache(name);
				}
				props.forEach(function(prop){
					if(!modifyProps[name][prop]){
						modifyProps[name][prop] = [];
						havePolyfill[prop] = true;
					}
					if(desc.set){
						if(only){
							desc.set.only =  only;
						}
						modifyProps[name][prop].push(desc.set);
					}
					
					if(desc.initAttr){
						initProp.content(name, prop);
					}
				});
				initProp.flushTmpCache();
				
			});
		},
		defineNodeNamesBooleanProperty: function(elementNames, prop, descs){
			if(!descs){
				descs = {};
			}
			if($.isFunction(descs)){
				descs.set = descs;
			}
			webshims.defineNodeNamesProperty(elementNames, prop, {
				attr: {
					set: function(val){
						this.setAttribute(prop, val);
						if(descs.set){
							descs.set.call(this, true);
						}
					},
					get: function(){
						var ret = this.getAttribute(prop);
						return (ret == null) ? undefined : prop;
					}
				},
				removeAttr: {
					value: function(){
						this.removeAttribute(prop);
						if(descs.set){
							descs.set.call(this, false);
						}
					}
				},
				reflect: true,
				propType: 'boolean',
				initAttr: descs.initAttr || false
			});
		},
		contentAttr: function(elem, name, val){
			if(!elem.nodeName){return;}
			var attr;
			if(val === undefined){
				attr = (elem.attributes[name] || {});
				val = attr.specified ? attr.value : null;
				return (val == null) ? undefined : val;
			}
			
			if(typeof val == 'boolean'){
				if(!val){
					elem.removeAttribute(name);
				} else {
					elem.setAttribute(name, name);
				}
			} else {
				elem.setAttribute(name, val);
			}
		},
		
//		set current Lang:
//			- webshims.activeLang(lang:string);
//		get current lang
//			- webshims.activeLang();
//		get current lang
//			webshims.activeLang({
//				register: moduleName:string,
//				callback: callback:function
//			});
//		get/set including removeLang
//			- webshims.activeLang({
//				module: moduleName:string,
//				callback: callback:function,
//				langObj: languageObj:array/object
//			});
		activeLang: (function(){
			var callbacks = [];
			var registeredCallbacks = {};
			var currentLang;
			var shortLang;
			var notLocal = /:\/\/|^\.*\//;
			var loadRemoteLang = function(data, lang, options){
				var langSrc;
				if(lang && options && $.inArray(lang, options.availabeLangs || []) !== -1){
					data.loading = true;
					langSrc = options.langSrc;
					if(!notLocal.test(langSrc)){
						langSrc = webshims.cfg.basePath+langSrc;
					}
					webshims.loader.loadScript(langSrc+lang+'.js', function(){
						if(data.langObj[lang]){
							data.loading = false;
							callLang(data, true);
						} else {
							$(function(){
								if(data.langObj[lang]){
									callLang(data, true);
								}
								data.loading = false;
							});
						}
					});
					return true;
				}
				return false;
			};
			var callRegister = function(module){
				if(registeredCallbacks[module]){
					registeredCallbacks[module].forEach(function(data){
						data.callback();
					});
				}
			};
			var callLang = function(data, _noLoop){
				if(data.activeLang != currentLang && data.activeLang !== shortLang){
					var options = modules[data.module].options;
					if( data.langObj[currentLang] || (shortLang && data.langObj[shortLang]) ){
						data.activeLang = currentLang;
						data.callback(data.langObj[currentLang] || data.langObj[shortLang], currentLang);
						callRegister(data.module);
					} else if( !_noLoop &&
						!loadRemoteLang(data, currentLang, options) && 
						!loadRemoteLang(data, shortLang, options) && 
						data.langObj[''] && data.activeLang !== '' ) {
						data.activeLang = '';
						data.callback(data.langObj[''], currentLang);
						callRegister(data.module);
					}
				}
			};
			
			
			var activeLang = function(lang){
				
				if(typeof lang == 'string' && lang !== currentLang){
					currentLang = lang;
					shortLang = currentLang.split('-')[0];
					if(currentLang == shortLang){
						shortLang = false;
					}
					$.each(callbacks, function(i, data){
						callLang(data);
					});
				} else if(typeof lang == 'object'){
					
					if(lang.register){
						if(!registeredCallbacks[lang.register]){
							registeredCallbacks[lang.register] = [];
						}
						registeredCallbacks[lang.register].push(lang);
						lang.callback();
					} else {
						if(!lang.activeLang){
							lang.activeLang = '';
						}
						callbacks.push(lang);
						callLang(lang);
					}
				}
				return currentLang;
			};
			
			return activeLang;
		})()
	});
	
	$.each({
		defineNodeNamesProperty: 'defineNodeNameProperty',
		defineNodeNamesProperties: 'defineNodeNameProperties',
		createElements: 'createElement'
	}, function(name, baseMethod){
		webshims[name] = function(names, a, b, c){
			if(typeof names == 'string'){
				names = names.split(listReg);
			}
			var retDesc = {};
			names.forEach(function(nodeName){
				retDesc[nodeName] = webshims[baseMethod](nodeName, a, b, c);
			});
			return retDesc;
		};
	});
	
	webshims.isReady('webshimLocalization', true);
});
//html5a11y
(function($, document){
	var browserVersion = $.webshims.browserVersion;
	if($.browser.mozilla && browserVersion > 5){return;}
	if (!$.browser.msie || (browserVersion < 12 && browserVersion > 7)) {
		var elemMappings = {
			article: "article",
			aside: "complementary",
			section: "region",
			nav: "navigation",
			address: "contentinfo"
		};
		var addRole = function(elem, role){
			var hasRole = elem.getAttribute('role');
			if (!hasRole) {
				elem.setAttribute('role', role);
			}
		};
		
		$.webshims.addReady(function(context, contextElem){
			$.each(elemMappings, function(name, role){
				var elems = $(name, context).add(contextElem.filter(name));
				for (var i = 0, len = elems.length; i < len; i++) {
					addRole(elems[i], role);
				}
			});
			if (context === document) {
				var header = document.getElementsByTagName('header')[0];
				var footers = document.getElementsByTagName('footer');
				var footerLen = footers.length;
				if (header && !$(header).closest('section, article')[0]) {
					addRole(header, 'banner');
				}
				if (!footerLen) {
					return;
				}
				var footer = footers[footerLen - 1];
				if (!$(footer).closest('section, article')[0]) {
					addRole(footer, 'contentinfo');
				}
			}
		});
	}
})(jQuery, document);
jQuery.webshims.register('form-datalist', function($, webshims, window, document, undefined){
	var doc = document;	

	/*
	 * implement propType "element" currently only used for list-attribute (will be moved to dom-extend, if needed)
	 */
	webshims.propTypes.element = function(descs){
		webshims.createPropDefault(descs, 'attr');
		if(descs.prop){return;}
		descs.prop = {
			get: function(){
				var elem = descs.attr.get.call(this);
				if(elem){
					elem = document.getElementById(elem);
					if(elem && descs.propNodeName && !$.nodeName(elem, descs.propNodeName)){
						elem = null;
					}
				}
				return elem || null;
			},
			writeable: false
		};
	};
	
	
	/*
	 * Implements datalist element and list attribute
	 */
	
	(function(){
		var formsCFG = $.webshims.cfg.forms;
		var listSupport = Modernizr.input.list;
		if(listSupport && !formsCFG.customDatalist){return;}
		
			var initializeDatalist =  function(){
				
				
			if(!listSupport){
				webshims.defineNodeNameProperty('datalist', 'options', {
					prop: {
						writeable: false,
						get: function(){
							var elem = this;
							var select = $('select', elem);
							var options;
							if(select[0]){
								options = select[0].options;
							} else {
								options = $('option', elem).get();
								if(options.length){
									webshims.warn('you should wrap your option-elements for a datalist in a select element to support IE and other old browsers.');
								}
							}
							return options;
						}
					}
				});
			}
				
			var inputListProto = {
				//override autocomplete
				autocomplete: {
					attr: {
						get: function(){
							var elem = this;
							var data = $.data(elem, 'datalistWidget');
							if(data){
								return data._autocomplete;
							}
							return ('autocomplete' in elem) ? elem.autocomplete : elem.getAttribute('autocomplete');
						},
						set: function(value){
							var elem = this;
							var data = $.data(elem, 'datalistWidget');
							if(data){
								data._autocomplete = value;
								if(value == 'off'){
									data.hideList();
								}
							} else {
								if('autocomplete' in elem){
									elem.autocomplete = value;
								} else {
									elem.setAttribute('autocomplete', value);
								}
							}
						}
					}
				}
			};
			
//			if(formsCFG.customDatalist && (!listSupport || !('selectedOption') in $('<input />')[0])){
//				//currently not supported x-browser (FF4 has not implemented and is not polyfilled )
//				inputListProto.selectedOption = {
//					prop: {
//						writeable: false,
//						get: function(){
//							var elem = this;
//							var list = $.prop(elem, 'list');
//							var ret = null;
//							var value, options;
//							if(!list){return ret;}
//							value = $.prop(elem, 'value');
//							if(!value){return ret;}
//							options = $.prop(list, 'options');
//							if(!options.length){return ret;}
//							$.each(options, function(i, option){
//								if(value == $.prop(option, 'value')){
//									ret = option;
//									return false;
//								}
//							});
//							return ret;
//						}
//					}
//				};
//			}
			
			if(!listSupport){
				inputListProto['list'] = {
					attr: {
						get: function(){
							var val = webshims.contentAttr(this, 'list');
							return (val == null) ? undefined : val;
						},
						set: function(value){
							var elem = this;
							webshims.contentAttr(elem, 'list', value);
							webshims.objectCreate(shadowListProto, undefined, {input: elem, id: value, datalist: $.prop(elem, 'list')});
						}
					},
					initAttr: true,
					reflect: true,
					propType: 'element',
					propNodeName: 'datalist'
				};
			} else {
				//options only return options, if option-elements are rooted: but this makes this part of HTML5 less backwards compatible
				if(!($('<datalist><select><option></option></select></datalist>').prop('options') || []).length ){
					webshims.defineNodeNameProperty('datalist', 'options', {
						prop: {
							writeable: false,
							get: function(){
								var options = this.options || [];
								if(!options.length){
									var elem = this;
									var select = $('select', elem);
									if(select[0] && select[0].options && select[0].options.length){
										options = select[0].options;
									}
								}
								return options;
							}
						}
					});
				}
				inputListProto['list'] = {
					attr: {
						get: function(){
							var val = webshims.contentAttr(this, 'list');
							if(val != null){
								this.removeAttribute('list');
							} else {
								val = $.data(this, 'datalistListAttr');
							}
							
							return (val == null) ? undefined : val;
						},
						set: function(value){
							var elem = this;
							$.data(elem, 'datalistListAttr', value);
							webshims.objectCreate(shadowListProto, undefined, {input: elem, id: value, datalist: $.prop(elem, 'list')});
						}
					},
					initAttr: true,
					reflect: true,
					propType: 'element',
					propNodeName: 'datalist'
				};
			}
				
				
			webshims.defineNodeNameProperties('input', inputListProto);
			
			if($.event.customEvent){
				$.event.customEvent.updateDatalist = true;
				$.event.customEvent.updateInput = true;
				$.event.customEvent.datalistselect = true;
			} 
			webshims.addReady(function(context, contextElem){
				contextElem
					.filter('datalist > select, datalist, datalist > option, datalist > select > option')
					.closest('datalist')
					.triggerHandler('updateDatalist')
				;
				
			});
			
			
		};
		
		
		/*
		 * ShadowList
		 */
		var listidIndex = 0;
		
		var noDatalistSupport = {
			submit: 1,
			button: 1,
			reset: 1, 
			hidden: 1,
			
			//ToDo
			range: 1,
			date: 1
		};
		var lteie6 = ($.browser.msie && parseInt($.browser.version, 10) < 7);
		var globStoredOptions = {};
		var getStoredOptions = function(name){
			if(!name){return [];}
			if(globStoredOptions[name]){
				return globStoredOptions[name];
			}
			var data;
			try {
				data = JSON.parse(localStorage.getItem('storedDatalistOptions'+name));
			} catch(e){}
			globStoredOptions[name] = data || [];
			return data || [];
		};
		var storeOptions = function(name, val){
			if(!name){return;}
			val = val || [];
			try {
				localStorage.setItem( 'storedDatalistOptions'+name, JSON.stringify(val) );
			} catch(e){}
		};
		
		var getText = function(elem){
			return (elem.textContent || elem.innerText || $.text([ elem ]) || '');
		};
		
		var shadowListProto = {
			_create: function(opts){
				
				if(noDatalistSupport[$.prop(opts.input, 'type')]){return;}
				var datalist = opts.datalist;
				var data = $.data(opts.input, 'datalistWidget');
				if(datalist && data && data.datalist !== datalist){
					data.datalist = datalist;
					data.id = opts.id;
					
					data.shadowList.prop('className', 'datalist-polyfill '+ (data.datalist.className || '') + ' '+ data.datalist.id +'-shadowdom');
					if(formsCFG.positionDatalist){
						data.shadowList.insertAfter(opts.input);
					} else {
						data.shadowList.appendTo('body');
					}
					$(data.datalist)
						.unbind('updateDatalist.datalistWidget')
						.bind('updateDatalist.datalistWidget', $.proxy(data, '_resetListCached'))
					;
					data._resetListCached();
					return;
				} else if(!datalist){
					if(data){
						data.destroy();
					}
					return;
				} else if(data && data.datalist === datalist){
					return;
				}
				listidIndex++;
				var that = this;
				this.hideList = $.proxy(that, 'hideList');
				this.timedHide = function(){
					clearTimeout(that.hideTimer);
					that.hideTimer = setTimeout(that.hideList, 9);
				};
				this.datalist = datalist;
				this.id = opts.id;
				this.hasViewableData = true;
				this._autocomplete = $.attr(opts.input, 'autocomplete');
				$.data(opts.input, 'datalistWidget', this);
				this.shadowList = $('<div class="datalist-polyfill '+ (this.datalist.className || '') + ' '+ this.datalist.id +'-shadowdom' +'" />');
				
				if(formsCFG.positionDatalist || $(opts.input).hasClass('position-datalist')){
					this.shadowList.insertAfter(opts.input);
				} else {
					this.shadowList.appendTo('body');
				}
				
				this.index = -1;
				this.input = opts.input;
				this.arrayOptions = [];
				
				this.shadowList
					.delegate('li', 'mouseenter.datalistWidget mousedown.datalistWidget click.datalistWidget', function(e){
						var items = $('li:not(.hidden-item)', that.shadowList);
						var select = (e.type == 'mousedown' || e.type == 'click');
						that.markItem(items.index(e.currentTarget), select, items);
						if(e.type == 'click'){
							that.hideList();
							if(formsCFG.customDatalist){
								$(opts.input).trigger('datalistselect');
							}
						}
						return (e.type != 'mousedown');
					})
					.bind('focusout', this.timedHide)
				;
				
				opts.input.setAttribute('autocomplete', 'off');
				
				$(opts.input)
					.attr({
						//role: 'combobox',
						'aria-haspopup': 'true'
					})
					.bind('input.datalistWidget', function(){
						if(!that.triggeredByDatalist){
							that.changedValue = false;
							that.showHideOptions();
						}
					})
					
					.bind('keydown.datalistWidget', function(e){
						var keyCode = e.keyCode;
						var activeItem;
						var items;
						if(keyCode == 40 && !that.showList()){
							that.markItem(that.index + 1, true);
							return false;
						}
						
						if(!that.isListVisible){return;}
						
						 
						if(keyCode == 38){
							that.markItem(that.index - 1, true);
							return false;
						} 
						if(!e.shiftKey && (keyCode == 33 || keyCode == 36)){
							that.markItem(0, true);
							return false;
						} 
						if(!e.shiftKey && (keyCode == 34 || keyCode == 35)){
							items = $('li:not(.hidden-item)', that.shadowList);
							that.markItem(items.length - 1, true, items);
							return false;
						} 
						if(keyCode == 13 || keyCode == 27){
							if (keyCode == 13){
								activeItem = $('li.active-item:not(.hidden-item)', that.shadowList);
								that.changeValue( $('li.active-item:not(.hidden-item)', that.shadowList) );
							}
							that.hideList();
							if(formsCFG.customDatalist && activeItem && activeItem[0]){
								$(opts.input).trigger('datalistselect');
							}
							return false;
						}
					})
					.bind('focus.datalistWidget', function(){
						if($(this).hasClass('list-focus')){
							that.showList();
						}
					})
					.bind('mousedown.datalistWidget', function(){
						if($(this).is(':focus')){
							that.showList();
						}
					})
					.bind('blur.datalistWidget', this.timedHide)
				;
				
				
				$(this.datalist)
					.unbind('updateDatalist.datalistWidget')
					.bind('updateDatalist.datalistWidget', $.proxy(this, '_resetListCached'))
				;
				
				this._resetListCached();
				
				if(opts.input.form && (opts.input.name || opts.input.id)){
					$(opts.input.form).bind('submit.datalistWidget'+opts.input.id, function(){
						if(!$(opts.input).hasClass('no-datalist-cache') && that._autocomplete != 'off'){
							var val = $.prop(opts.input, 'value');
							var name = (opts.input.name || opts.input.id) + $.prop(opts.input, 'type');
							if(!that.storedOptions){
								that.storedOptions = getStoredOptions( name );
							}
							if(val && that.storedOptions.indexOf(val) == -1){
								that.storedOptions.push(val);
								storeOptions(name, that.storedOptions );
							}
						}
					});
				}
				$(window).bind('unload.datalist'+this.id+' beforeunload.datalist'+this.id, function(){
					that.destroy();
				});
			},
			destroy: function(){
				var autocomplete = $.attr(this.input, 'autocomplete');
				$(this.input)
					.unbind('.datalistWidget')
					.removeData('datalistWidget')
				;
				this.shadowList.remove();
				$(document).unbind('.datalist'+this.id);
				$(window).unbind('.datalist'+this.id);
				if(this.input.form && this.input.id){
					$(this.input.form).unbind('submit.datalistWidget'+this.input.id);
				}
				this.input.removeAttribute('aria-haspopup');
				if(autocomplete === undefined){
					this.input.removeAttribute('autocomplete');
				} else {
					$(this.input).attr('autocomplete', autocomplete);
				}
			},
			_resetListCached: function(e){
				var that = this;
				var forceShow;
				this.needsUpdate = true;
				this.lastUpdatedValue = false;
				this.lastUnfoundValue = '';

				if(!this.updateTimer){
					if(window.QUnit || (forceShow = (e && document.activeElement == that.input))){
						that.updateListOptions(forceShow);
					} else {
						webshims.ready('WINDOWLOAD', function(){
							that.updateTimer = setTimeout(function(){
								that.updateListOptions();
								that = null;
								listidIndex = 1;
							}, 200 + (100 * listidIndex));
						});
					}
				}
			},
			updateListOptions: function(_forceShow){
				this.needsUpdate = false;
				clearTimeout(this.updateTimer);
				this.updateTimer = false;
				this.shadowList
					.css({
						fontSize: $.css(this.input, 'fontSize'),
						fontFamily: $.css(this.input, 'fontFamily')
					})
				;
				this.searchStart = formsCFG.customDatalist && $(this.input).hasClass('search-start');
				
				var list = [];
				
				var values = [];
				var allOptions = [];
				var rElem, rItem, rOptions, rI, rLen, item;
				for(rOptions = $.prop(this.datalist, 'options'), rI = 0, rLen = rOptions.length; rI < rLen; rI++){
					rElem = rOptions[rI];
					if(rElem.disabled){return;}
					rItem = {
						value: $(rElem).val() || '',
						text: $.trim($.attr(rElem, 'label') || getText(rElem)),
						className: rElem.className || '',
						style: $.attr(rElem, 'style') || ''
					};
					if(!rItem.text){
						rItem.text = rItem.value;
					} else if(rItem.text != rItem.value){
						rItem.className += ' different-label-value';
					}
					values[rI] = rItem.value;
					allOptions[rI] = rItem;
				}
				
				if(!this.storedOptions){
					this.storedOptions = ($(this.input).hasClass('no-datalist-cache') || this._autocomplete == 'off') ? [] : getStoredOptions((this.input.name || this.input.id) + $.prop(this.input, 'type'));
				}
				
				this.storedOptions.forEach(function(val, i){
					if(values.indexOf(val) == -1){
						allOptions.push({value: val, text: val, className: 'stored-suggest', style: ''});
					}
				});
				
				for(rI = 0, rLen = allOptions.length; rI < rLen; rI++){
					item = allOptions[rI];
					list[rI] = '<li class="'+ item.className +'" style="'+ item.style +'" tabindex="-1" role="listitem"><span class="option-label">'+ item.text +'</span> <span class="option-value">'+item.value+'</span></li>';
				}
				
				this.arrayOptions = allOptions;
				this.shadowList.html('<div class="datalist-outer-box"><div class="datalist-box"><ul role="list">'+ list.join("\n") +'</ul></div></div>');
				
				if($.fn.bgIframe && lteie6){
					this.shadowList.bgIframe();
				}
				
				if(_forceShow || this.isListVisible){
					this.showHideOptions();
				}
			},
			showHideOptions: function(_fromShowList){
				var value = $.prop(this.input, 'value').toLowerCase();
				//first check prevent infinite loop, second creates simple lazy optimization
				if(value === this.lastUpdatedValue || (this.lastUnfoundValue && value.indexOf(this.lastUnfoundValue) === 0)){
					return;
				}
				
				this.lastUpdatedValue = value;
				var found = false;
				var startSearch = this.searchStart;
				var lis = $('li', this.shadowList);
				if(value){
					this.arrayOptions.forEach(function(item, i){
						var search;
						if(!('lowerText' in item)){
							if(item.text != item.value){
								item.lowerText = item.value.toLowerCase() + item.text.toLowerCase();
							} else {
								item.lowerText = item.text.toLowerCase();
							}
						}
						search = item.lowerText.indexOf(value);
						search = startSearch ? !search : search !== -1;
						if(search){
							$(lis[i]).removeClass('hidden-item');
							found = true;
						} else {
							$(lis[i]).addClass('hidden-item');
						}
					});
				} else if(lis.length) {
					lis.removeClass('hidden-item');
					found = true;
				}
				
				this.hasViewableData = found;
				if(!_fromShowList && found){
					this.showList();
				}
				if(!found){
					this.lastUnfoundValue = value;
					this.hideList();
				}
			},
			setPos: function(){
				this.shadowList.css({marginTop: 0, marginLeft: 0, marginRight: 0, marginBottom: 0});
				var css = (formsCFG.positionDatalist) ? $(this.input).position() : webshims.getRelOffset(this.shadowList, this.input);
				css.top += $(this.input).outerHeight();
				css.width = $(this.input).outerWidth() - (parseInt(this.shadowList.css('borderLeftWidth'), 10)  || 0) - (parseInt(this.shadowList.css('borderRightWidth'), 10)  || 0);
				this.shadowList.css({marginTop: '', marginLeft: '', marginRight: '', marginBottom: ''}).css(css);
				return css;
			},
			showList: function(){
				if(this.isListVisible){return false;}
				if(this.needsUpdate){
					this.updateListOptions();
				}
				this.showHideOptions(true);
				if(!this.hasViewableData){return false;}
				this.isListVisible = true;
				var that = this;
				
				that.setPos();
				that.shadowList.addClass('datalist-visible').find('li.active-item').removeClass('active-item');
				
				$(window).unbind('.datalist'+that.id);
				$(document)
					.unbind('.datalist'+that.id)
					.bind('mousedown.datalist'+that.id +' focusin.datalist'+that.id, function(e){
						if(e.target === that.input ||  that.shadowList[0] === e.target || $.contains( that.shadowList[0], e.target )){
							clearTimeout(that.hideTimer);
							setTimeout(function(){
								clearTimeout(that.hideTimer);
							}, 9);
						} else {
							that.timedHide();
						}
					})
					.bind('updateshadowdom.datalist'+that.id, function(){
						that.setPos();
					})
				;
				return true;
			},
			hideList: function(){
				if(!this.isListVisible){return false;}
				var that = this;
				var triggerChange = function(e){
					if(that.changedValue){
						$(that.input).trigger('change');
					}
					that.changedValue = false;
				};
				
				that.shadowList.removeClass('datalist-visible list-item-active');
				that.index = -1;
				that.isListVisible = false;
				if(that.changedValue){
					that.triggeredByDatalist = true;
					webshims.triggerInlineForm && webshims.triggerInlineForm(that.input, 'input');
					if($(that.input).is(':focus')){
						$(that.input).one('blur', triggerChange);
					} else {
						triggerChange();
					}
					that.triggeredByDatalist = false;
				}
				$(document).unbind('.datalist'+that.id);
				$(window)
					.unbind('.datalist'+that.id)
					.one('resize.datalist'+that.id, function(){
						that.shadowList.css({top: 0, left: 0});
					})
				;
				return true;
			},
			scrollIntoView: function(elem){
				var ul = $('ul', this.shadowList);
				var div = $('div.datalist-box', this.shadowList);
				var elemPos = elem.position();
				var containerHeight;
				elemPos.top -=  (parseInt(ul.css('paddingTop'), 10) || 0) + (parseInt(ul.css('marginTop'), 10) || 0) + (parseInt(ul.css('borderTopWidth'), 10) || 0);
				if(elemPos.top < 0){
					div.scrollTop( div.scrollTop() + elemPos.top - 2);
					return;
				}
				elemPos.top += elem.outerHeight();
				containerHeight = div.height();
				if(elemPos.top > containerHeight){
					div.scrollTop( div.scrollTop() + (elemPos.top - containerHeight) + 2);
				}
			},
			changeValue: function(activeItem){
				if(!activeItem[0]){return;}
				var newValue = $('span.option-value', activeItem).text();
				var oldValue = $.prop(this.input, 'value');
				if(newValue != oldValue){
					$(this.input)
						.prop('value', newValue)
						.triggerHandler('updateInput')
					;
					this.changedValue = true;
				}
			},
			markItem: function(index, doValue, items){
				var activeItem;
				var goesUp;
				
				items = items || $('li:not(.hidden-item)', this.shadowList);
				if(!items.length){return;}
				if(index < 0){
					index = items.length - 1;
				} else if(index >= items.length){
					index = 0;
				}
				items.removeClass('active-item');
				this.shadowList.addClass('list-item-active');
				activeItem = items.filter(':eq('+ index +')').addClass('active-item');
				
				if(doValue){
					this.changeValue(activeItem);
					this.scrollIntoView(activeItem);
				}
				this.index = index;
			}
		};
		
		//init datalist update
		initializeDatalist();
	})();
	
});