var BrowserDetect = {
	init: function () {
		this.browser = this.searchString(this.dataBrowser) || "An unknown browser";
		this.version = this.searchVersion(navigator.userAgent)
			|| this.searchVersion(navigator.appVersion)
			|| "an unknown version";
		this.OS = this.searchString(this.dataOS) || "an unknown OS";
	},
	searchString: function (data) {
		for (var i=0;i<data.length;i++)	{
			var dataString = data[i].string;
			var dataProp = data[i].prop;
			this.versionSearchString = data[i].versionSearch || data[i].identity;
			if (dataString) {
				if (dataString.indexOf(data[i].subString) != -1)
					return data[i].identity;
			}
			else if (dataProp)
				return data[i].identity;
		}
	},
	searchVersion: function (dataString) {
		var index = dataString.indexOf(this.versionSearchString);
		if (index == -1) return;
		return parseFloat(dataString.substring(index+this.versionSearchString.length+1));
	},
	dataBrowser: [
		{
			string: navigator.userAgent,
			subString: "Chrome",
			identity: "Chrome"
		},
		{ 	string: navigator.userAgent,
			subString: "OmniWeb",
			versionSearch: "OmniWeb/",
			identity: "OmniWeb"
		},
		{
			string: navigator.vendor,
			subString: "Apple",
			identity: "Safari",
			versionSearch: "Version"
		},
		{
			prop: window.opera,
			identity: "Opera"
		},
		{
			string: navigator.vendor,
			subString: "iCab",
			identity: "iCab"
		},
		{
			string: navigator.vendor,
			subString: "KDE",
			identity: "Konqueror"
		},
		{
			string: navigator.userAgent,
			subString: "Firefox",
			identity: "Firefox"
		},
		{
			string: navigator.vendor,
			subString: "Camino",
			identity: "Camino"
		},
		{		// for newer Netscapes (6+)
			string: navigator.userAgent,
			subString: "Netscape",
			identity: "Netscape"
		},
		{
			string: navigator.userAgent,
			subString: "MSIE",
			identity: "Explorer",
			versionSearch: "MSIE"
		},
		{
			string: navigator.userAgent,
			subString: "Gecko",
			identity: "Mozilla",
			versionSearch: "rv"
		},
		{ 		// for older Netscapes (4-)
			string: navigator.userAgent,
			subString: "Mozilla",
			identity: "Netscape",
			versionSearch: "Mozilla"
		}
	],
	dataOS : [
		{
			string: navigator.platform,
			subString: "Win",
			identity: "Windows"
		},
		{
			string: navigator.platform,
			subString: "Mac",
			identity: "Mac"
		},
		{
			   string: navigator.userAgent,
			   subString: "iPhone",
			   identity: "iPhone/iPod"
	    },
		{
			string: navigator.platform,
			subString: "Linux",
			identity: "Linux"
		}
	]

};
BrowserDetect.init();

( function() {
	 var trueName = '';
	 
	 //Defaults
	 var headerSubLogoHrefDefault = 'www.heart.org';
	 var headerSubLogoTextDefault = 'heart.org';
	 var headerSubLogoAltDefault = 'American Heart Association';
	 var headerSubLogoImgDefault = '';
	 var headerDonateCampaignCodeDefault = '99';
	 var headerSearchPostUrlDefault = 'http://www.americanheart.org/presenter.jhtml';
	 
	 headerSubLogoHrefDefault = (typeof window.headerSubLogoHref !== 'undefined') ? headerSubLogoHref : headerSubLogoHrefDefault;
	 headerSubLogoAltDefault = (typeof window.headerSubLogoAlt !== 'undefined') ? headerSubLogoAlt : headerSubLogoAltDefault;
	 headerSearchPostUrlDefault = (typeof window.headerSearchPostUrl !== 'undefined') ? headerSearchPostUrl : headerSearchPostUrlDefault;
	 headerDonateCampaignCodeDefault = (typeof window.headerDonateCampaignCode !== 'undefined') ? headerDonateCampaignCode : headerDonateCampaignCodeDefault;
 
	 if (typeof window.headerSubLogoImg !== 'undefined') {
		 //headerSubLogoImgDefault = headerSubLogoImg;
		 headerSubLogoImgDefault = '<img src="'+headerSubLogoImg+'" title="'+headerSubLogoAltDefault+'" alt="'+headerSubLogoAltDefault+'"/>';
		 headerSubLogoTextDefault = '';
	 } 
	headerDonateCampaignCodeDefault = (typeof window.headerDonateCampaignCode !== 'undefined') ? headerDonateCampaignCode : headerDonateCampaignCodeDefault;
	headerSearchPostUrlDefault = (typeof window.headerSearchPostUrl !== 'undefined') ? headerSearchPostUrl : headerSearchPostUrlDefault;
	
	for (var i = 0; i < 16; i++) {
		trueName += String.fromCharCode(Math.floor(Math.random() * 26) + 97);
	}
	window[trueName] = {};
	var $ = window[trueName];
	$.f = function() {
		return {
			init : function(target) {
			var theScripts = document.getElementsByTagName('SCRIPT');
			for (var i = 0; i < theScripts.length; i++) {
				if (theScripts[i].src.match(target)) {
					var styles = window.location.protocol + "//static.heart.org/css/reset.css";
					var styles2 = window.location.protocol + "//static.heart.org/css/header.css";
					var stylesMAH = window.location.protocol + "//static.heart.org/mah/css/header.css";
//					var ie6style = "http://static.heart.org/css/ie6.css";
				
					/*if(document.createStyleSheet) {
						document.createStyleSheet(styles);
						document.createStyleSheet(styles2);
						if (BrowserDetect.browser == "Explorer") {
							//alert(BrowserDetect.browser + ' ' + BrowserDetect.version);
							document.createStyleSheet(ie6style);
						}
					} else {*/
						var newSS=document.createElement('link');
						var newSS2=document.createElement('link');
//						var newSS3=document.createElement('link');
						var newSS4=document.createElement('link');
						newSS.rel='stylesheet';
						newSS2.rel='stylesheet';
//						newSS3.rel='stylesheet';
						newSS4.rel='stylesheet';
						newSS.href=styles;
						newSS2.href=styles2;
//						newSS3.href=ie6style;
						newSS4.href=stylesMAH;
/*						if (BrowserDetect.browser == "Explorer") {
							//alert(BrowserDetect.browser + ' ' + BrowserDetect.version);
							document.getElementsByTagName("head")[0].insertBefore(newSS3,document.getElementsByTagName("head")[0].firstChild);
						}
*/						document.getElementsByTagName("head")[0].insertBefore(newSS4,document.getElementsByTagName("head")[0].firstChild);
						document.getElementsByTagName("head")[0].insertBefore(newSS2,document.getElementsByTagName("head")[0].firstChild);
						document.getElementsByTagName("head")[0].insertBefore(newSS,document.getElementsByTagName("head")[0].firstChild);
					//}	 // http://my.americanheart.org/professional/search/searchresults.jsp?_DARGS=/professional/common/header.jsp		 
					/*<option id="select-lib" value="library">Library</option>*/
					$.w = document.createElement('DIV');
					$.w.className = 'heart_header_wrapper';
					$.search = '<div class="searchWrap"><div class="search"><form class="clrfix" method="post" action="http://my.americanheart.org/portal/professional/searchresults?_DARGS=/portal/mauiLayoutTemplates/html/shared/header_main.jsp" name="siteSearch" id="ahaSearchForm"><input value="ISO-8859-1" type="hidden" name="_dyncharset"></input><div class="input"><input id="testinput" type="text" name="query" class="input-hint ac_input" value="Search" onblur="if (this.value == \'\') {this.value = \'Search\';}"  onfocus="if (this.value == \'Search\') {this.value = \'\';}"/><input value=" " type="hidden" name="_D:query"></div><div class="select"> <span class="search-in">in: </span><select name="searchSource" id="searchOpt" class="ui-dropdown round" onchange="changeQuery(this.value);"><option id="select-aha" value="header">AmericanHeart.org</option><option id="select-lib" value="library">Library Advanced Search</option></select></div><button name="searchCallFromScript" id="search-submit" title="Search" type="submit"><span>Search</span></button><input value="/professional/search/searchresults.jsp?hideAd=true" type="hidden" name="successurlsearch"><input value=" " type="hidden" name="_D:successurlsearch"><input type="hidden" name="searchCallFromScript" id="searchCallFromScript"><input value=" " type="hidden" name="_D:searchCallFromScript"><input value="/professional/common/header.jsp" type="hidden" name="_DARGS"></input></form></div>';
					  
					$.w.innerHTML = '<div class="header_buffer"><div class="logo_buffer"><a class="logo_w_sub" href="http://www.americanheart.org"><img src="http://static.heart.org/images/asa_logo.gif" alt="American Heart Association: Learn more about the American Heart efforts to reduce death caused by cardiovascular disease." border="0" /></a><span class="sub_logo"><a href="'+headerSubLogoHrefDefault+'">'+headerSubLogoImgDefault+headerSubLogoTextDefault+'</a></span></div><div class="header_right">'+$.search+'</div><div class="ahaPersonaNav"><div class="ahaPersonaStretch"><ul class="ahaNav"><li><a href="http://americanheart.org/presenter.jhtml?identifier=3039829"><span class="for">for</span>Caregivers</a></li><li><a href="http://www.hearthub.org/"><span class="for">for</span>Patients</a></li><li><a href="http://my.americanheart.org"><span class="for">for</span>Professionals</a></li><li class="donate"><a href="https://donate.americanheart.org/ecommerce/donation/donation_info.jsp?campaignId='+headerDonateCampaignCodeDefault+'Dontate&site=Heart&itemId=prod20008">Donate</a></li></ul></div></div></div></div></div>';
					$.a = {};
					if (theScripts[i].innerHTML) {
						$.a = $.f.parseJson(theScripts[i].innerHTML);
					}
					if ($.a.err) {
						alert($.a.err);
					}
					theScripts[i].parentNode.insertBefore($.w, theScripts[i]);
					theScripts[i].parentNode.removeChild(theScripts[i]);
					break;
				}
			}
		   },
		   parseJson : function(json) {
				this.parseJson.data = json;
				if ( typeof json !== 'string') {
					return {"err":"trying to parse a non-string JSON object"};
				}
				try {
					var f = Function(['var document,top,self,window,parent,Number,Date,Object,Function,',
					'Array,String,Math,RegExp,Image,ActiveXObject;',
					'return (' , json.replace(/<\!--.+-->/gim,'').replace(/\bfunction\b/g,'function­') , ');'].join(''));
					return f();
				} catch (e) {
					return {"err":"trouble parsing JSON object == " + e};
				}
			}
		};
	}();
	var thisScript = /^https?:\/\/[^\/]*heart.org\/mah\/aha_header.js$/;
	if (typeof window.addEventListener !== 'undefined') {
		window.addEventListener('load', function() { $.f.init(thisScript); }, false);
	} else if (typeof window.attachEvent !== 'undefined') {
		window.attachEvent('onload', function() { $.f.init(thisScript); });
	}
})();

// MAH specific function that will change the search provider.
function changeQuery(sForm) {
//	alert(document.siteSearch.searchSource.value);
//alert(sForm);
	if (sForm == 'library') {
//		alert(document.siteSearch.searchSource.value);
		document.location='http://my.americanheart.org/OVIDSSO?/pt/re/aha/search.htm';
		document.siteSearch.searchSource.value = 'library';
//		document.siteSearch.searchQuery.value = document.siteSearch.query.value;
//		document.siteSearch.action = "http://my.americanheart.org//professional/search/searchresults.jsp?_DARGS=/professional/search/fragments/ContentSearch_Ovid.jsp";	
//		alert(document.siteSearch.action);
	} else {
		document.siteSearch.searchSource.value = 'header';
	}
	/*	
	if (document.siteSearch.searchSource.value == 'library') {
		document.siteSearch.action = "http://pt.wkhealth.com/pt/re/aha/search.htm;?&index=1&results=1&searchid=1";	
		document.siteSearch.query1.value = document.siteSearch.query.value;	
	}*/
//	alert (document.siteSearch.query1.value );
	return true;
}