/*Browser detect*/
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.vendor,
			subString: "Apple",
			identity: "Safari",
			versionSearch: "Version"
		},
		{
			prop: window.opera,
			identity: "Opera"
		},
		{
			string: navigator.userAgent,
			subString: "Firefox",
			identity: "Firefox"
		},
		{		// 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"
		}
	]

};
//End browser detect ========================================================= Start UCase Words
function UCWords(str){
	var arrStr = str.split(" ");
	var strOut = "";
	var i = 0;
	while (i < arrStr.length) {
		firstChar  = arrStr[i].substring(0,1);
		remainChar = arrStr[i].substring(1);
		firstChar  = firstChar.toUpperCase(); 
		remainChar = remainChar.toLowerCase();
		strOut += firstChar + remainChar + ' ';
		i++;
	}
	return strOut.substr(0,strOut.length - 1);
}
//End UCase Words ========================================================= Start SEngine Search String 
function SearchString(x,removeURLencoding){
	if (x.search(/.google.|.yahoo.|.bing.|.aol.|.search.|.ask.|.altavista./) > 0 ){
		if (x.search(/.yahoo./) > 0){
			var qpos = x.search(/&p=|\?p=/);
		} else if (x.search(/.aol./) > 0 ){
			if (x.search(/&q=|\?q=/) > 0) {
				var qpos = x.search(/&q=|\?q=/);
			} else {
				var qpos = x.search(/&query=|\?query=/) + 4;
			}
		} else {
			var qpos = x.search(/&q=|\?q=/);
		}
		if (x.indexOf("&", qpos + 1) != -1) {
			var kend = x.indexOf("&", qpos + 1);
		} else {
			var kend = x.length;
		}
		x = x.slice(qpos + 3, kend);
		x = x.replace( /\+/g, " " );
			if(removeURLencoding){
				x = unescape(x)
				x = x.replace( /%20/g, " " );
				x = x.replace( /%([0-4]){1}([0-9a-f]){1}/g, "" );
	  		}
		x = UCWords(x);
		return x;
	} else {
		return "";
	}
}
//End SEngine Search String ========================================================= Start Get Vars in URL
function getUrlVars( name, removeURLencoding ) {
  name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
  var regexS = "[\\?&]"+name+"=([^&#]*)";
  var regex = new RegExp( regexS );
  var results = regex.exec( window.location.href );
  if( results == null ) {
    return false;
  } else {
	  if(removeURLencoding){
		results[1] = results[1].replace( /%20/g, " " );
		results[1] = results[1].replace( /%([0-4]){1}([0-9a-f]){1}/g, "" );
	  }
  	  return results[1];
  }
}
//End Get Vars in URL ========================================================= Start SEngine Used
function SEngine(se){
	if (se.search(/.google.|.yahoo.|.bing.|.aol.|.search.|.ask.|.altavista./) > 0 ){
		if (se.search(/.yahoo./) > 0){
			se = "yahoo";
		} else if (se.search(/.aol./) > 0 ){
			se = "aol";
		} else if (se.search(/.google./) > 0){
			se = "google";
		} else if (se.search(/.bing./) > 0){
			se = "bing";
		} else if (se.search(/.search./) > 0){
			se = "search";
		} else if (se.search(/.ask./) > 0){
			se = "ask";
		} else if (se.search(/.altavista./) > 0){
			se = "altavista";
		}
	return se;
	} else {
	return false;	
	}
}
//END SEngine Used
/*==============================================================================
    Routines written by John Gardner - 2003 - 2005
    See www.braemoor.co.uk/software
================================================================================
    Parameters:
        cookieName        Cookie name
        cookieValue       Cookie Value
    Return value:
        true              Session cookie written successfullly
        false             Failed - persistent cookies are not enabled
*/

function writeSessionCookie (cookieName, cookieValue) {
  if (testSessionCookie()) {
    document.cookie = escape(cookieName) + "=" + escape(cookieValue) + "; path=/";
    return true;
  }
  else return false;
}
/*============================================================================== Cookie Current Value
    Return value:
        false             Failed - no such cookie
        value             Value of the retrieved cookie
*/
function getCookieValue (cookieName) {
  var exp = new RegExp (escape(cookieName) + "=([^;]+)");
  if (exp.test (document.cookie + ";")) {
    exp.exec (document.cookie + ";");
    return unescape(RegExp.$1);
  }
  else return false;
}
//============================================================================== Persistent Cookie Test
function testPersistentCookie () {
  writePersistentCookie ("testPersistentCookie", "Enabled", "minutes", 1);
  if (getCookieValue ("testPersistentCookie")=="Enabled")
    return true  
  else 
    return false;
}
/*============================================================================== Create Persistent Cookie
    Parameters:
        CookieName        Cookie name
        CookieValue       Cookie Value
        periodType        "years","months","days","hours", "minutes"
        offset            Number of units specified in periodType
*/       
function writePersistentCookie (CookieName, CookieValue, periodType, offset) {

  var expireDate = new Date ();
  offset = offset / 1;
  
  var myPeriodType = periodType;
  switch (myPeriodType.toLowerCase()) {
    case "years": 
     var year = expireDate.getYear();     
     // Note some browsers give only the years since 1900, and some since 0.
     if (year < 1000) year = year + 1900;     
     expireDate.setYear(year + offset);
     break;
    case "months":
      expireDate.setMonth(expireDate.getMonth() + offset);
      break;
    case "days":
      expireDate.setDate(expireDate.getDate() + offset);
      break;
    case "hours":
      expireDate.setHours(expireDate.getHours() + offset);
      break;
    case "minutes":
      expireDate.setMinutes(expireDate.getMinutes() + offset);
      break;
    default:
      alert ("Invalid periodType parameter for writePersistentCookie()");
      break;
  } 
  
  document.cookie = escape(CookieName ) + "=" + escape(CookieValue) + "; expires=" + expireDate.toGMTString() + "; path=/";
}  

//========================================================= Search data for IC request form
if (testPersistentCookie ()) {
	if (getCookieValue ("FirstVisitDate") == false) {
		var d = new Date();
		var curr_month = d.getMonth() + 1;
		var curr_date = d.getDate();
		var curr_year = d.getFullYear();
		date = curr_month + "-" + curr_date + "-" + curr_year;
		writePersistentCookie ("FirstVisitDate", date, "years", 1);
		var lndingPg = window.location.href
		if (/\?/.test(lndingPg)){ //look for variables on URL
			if (/\?(a|i)d=\d+/.test(lndingPg)){ //look for 'ad=x' or 'id=x'
				if (/&/.test(lndingPg)){ //look for other variables to remove from string
					var lndingPg = lndingPg.replace(/&\S+/,'');
				}
			} else { //if not 'ad=x' or 'id=x' remove all variables
				var lndingPg = lndingPg.replace(/\?\S+/,'');
			}
		}
		writePersistentCookie ("FirstLandingPage", lndingPg, "years", 1);
		if (SearchString(document.referrer) == ""){
			keyword = false;
		} else {
			keyword = SearchString(document.referrer);
		}
		writePersistentCookie ("SearchKeyword", keyword, "years", 1);
		writePersistentCookie ("SearchEngine", SEngine(document.referrer), "years", 1);
		if (document.referrer != "" && SEngine(document.referrer) == false) {
			referralPage = document.referrer;
		} else {
			referralPage = false;
		}
		writePersistentCookie ("ReferingSite", referralPage, "years", 1);
		writePersistentCookie ("CPCKeyword", getUrlVars('kywd', true), "years", 1);
		writePersistentCookie ("CPCAdID", getUrlVars('adid', true), "years", 1);
	}
}