// rwtag.js

// Version 0.9.6 2006-03-01



var rwSetup = new rwSetup();

var rwImage = new Image;



// Routine to pick up exisiting PPC parameters. Adapt and uncomment code as necessary.

// Regular expression matches http://www.mysite.com/landingpage/?source=PPCENGINENAME&keyword=SEARCHTERM

//var rwTagPrefix

//rwGrep = new RegExp("source=([^&]+)\&keyword=([^&]+)");

//if (rwGrep.test(location.href)) {

//	matches = location.href.match(rwGrep);

//	rwTagPrefix="rw.cm="+matches[1]+",PPC,"+matches[2];

//}



function rwSetup() {

	this.rwVersion = "0.9.6";

	this.rwProfile = "netbenefit";

	this.rwTagServerGIF = "www.sptag2.com/rwtag.gif";

	this.rwCheckMetaTags = true;

	this.rwSendTitle = true;

	this.rwSendURL = true;

	this.rwSequence = false;

	this.rwCookieName = "rwtag";	

	this.rwCookieCreate = true;

	this.rwCookieDays = 3650;

	this.rwCookieDomain = null;

	this.rwCookieEnabledCheck = true;

	this.rwDebug = false;

}



function rwAddTag( rwPage, rwPrefix, rwPageTitle ) {

	if (typeof rwPage =="string" && rwPage.length>0){

		var rwString = "http"+(window.location.protocol.indexOf('https:')==0?'s':'') + "://" + rwSetup.rwTagServerGIF;

		rwString = rwString + "?" + (typeof rwPrefix =="string" && rwPrefix.length>0 ? rwPrefix + "&" : "")  + rwParameters();

		rwString = rwString + "&rw.ul=" + escape(location.href.substring(0, location.href.lastIndexOf("/")+1) + rwPage) + "&rw.rf=" + escape(location.href);

		if (typeof rwPageTitle =="string" && rwPageTitle.length>0 && rwSetup.rwSendTitle){

			rwString = rwString + "&rw.ti=" + escape(rwPageTitle);

		}

		return rwTagServer(rwString);

	}

	return null;

}



function rwCookieTag(){

	var rwCookieName = rwSetup.rwCookieName

	var rwCookiePath = "/";

	var rwCookieDomain = rwSetup.rwCookieDomain;

	var rwCookieDays = rwSetup.rwCookieDays;

	var rwCookieString = "";

	if (rwCookieName.length == 0){

		return "";

	}

	rwCookieString = rwGetCookieLastValue( rwCookieName );

	if (typeof rwCookieString =="string" && rwCookieString.length>0){

		return "rw.ck=" + rwCookieString; 

	}

	if (rwSetup.rwCookieCreate == false){

		return "rw.ck=";

	} else {

		var rwNowString = new Date().getTime();

		var rwCookieString = "rwtag." + location.href.length + "." + navigator.userAgent.length + "." + rwNowString;

		var rwCookieExpiry = null;

		if (rwCookieDays>0) {

			rwCookieExpiry = new Date();

			rwCookieExpiry.setDate(rwCookieExpiry.getDate() + parseInt(rwCookieDays))

			rwCookieExpiry = rwCookieExpiry.toGMTString();

		}

		rwSetCookie( rwCookieName, rwCookieString, rwCookieExpiry, rwCookiePath, rwCookieDomain, null);

		rwCookieString = "";

		rwCookieString = rwGetCookieLastValue(rwCookieName);

		if (typeof rwCookieString =="string"){

			return "rw.ck=" + rwCookieString + "&rw.ckcreated=" +  rwNowString;

		} else {

			return "rw.ck=";

		}

	}

	return "";

}

	

function rwMetaTags(){		

	var rwMT = "";

	var rwMTags;

	if (document.all){

		rwMTags = document.all.tags("meta");

	} else if (document.documentElement){

		rwMTags = document.getElementsByTagName("meta");

	}

	if (typeof rwMTags !="undefined"){

		for (var i=1;i<=rwMTags.length;i++){

			var rwMTag=rwMTags.item(i-1);

			if (rwMTag.name){

				if (rwMTag.name.indexOf('rw.')==0){

					rwMT=rwMT+"&"+rwMTag.name+"="+escape(rwMTag.content);

				}

			}

		}

	}

	return rwMT;

}

	

function rwParameters(){

	var rwNow = new Date();

	var rwString = "rw.pf=" + rwSetup.rwProfile + "&rw.nw="+ rwNow.getTime();	

	if (rwSetup.rwCookieName.length>0){

		rwString = rwString + "&" + rwCookieTag();

	}			

	if (rwSetup.rwCookieEnabledCheck == true && rwIsCookieEnabled()==false) {

		rwString = rwString + "&rw.ckstatus=disabled";

	}	

	if (rwSetup.rwSequence == true ){

		var rwSequence = rwGetCookieLastValue("rwsequence");

		if (typeof rwSequence=="string" && rwSequence.length>0){

			rwSequence = "" + (parseInt(rwSequence)+1);

			rwTagHTML = rwString + "&rw.sq=" + rwSequence;

			rwSetCookie("rwsequence",rwSequence,null,"/",rwSetup.rwCookieDomain,null);		

		} else {

			rwSequence = "1";

			rwSetCookie("rwsequence",rwSequence,null,"/",rwSetup.rwCookieDomain,null);		

			rwTagHTML = rwString + "&rw.sq=" + rwSequence;

		}

	}

	return rwString;	

}



function rwTag( rwPrefix ){			

	return rwTagServer( rwURL( rwPrefix ));

}

	

function rwTagServer( rwURLString ){	

	var rwTagHTML = rwURLString;

	

	if (rwTagHTML.length>2048&&navigator.userAgent.indexOf('MSIE')>=0){

		rwTagHTML=rwTagHTML.substring(0,2040)+"&rw.End=1";

	}

	if (document.images){

		rwImage.src = rwTagHTML;

	} else {

		rwTagHTML = '<I' + 'MG BORDER=\"0\" NAME=\"rwtag\" WIDTH=\"1\" HEIGHT=\"1\" SRC=\"' + rwTagHTML + ' \" >' ;

		document.write( rwTagHTML );

	}

	if (rwSetup.rwDebug == true) {

		document.write("<br/><b>"+rwTagHTML+"</b>");

	}

	return rwTagHTML;

}	



function rwURL( rwPrefix ){

	var rwURLString = "";

	if (typeof rwTagPrefix== "string" && rwTagPrefix.length>0) {

		rwURLString = rwTagPrefix;

	}

	if (typeof rwPrefix == "string" && rwPrefix.length>0){

		rwURLString = (rwURLString.length>0 ? rwURLString + "&" : "") + rwPrefix;

	} 

	rwURLString = "?" + (rwURLString.length>0 ? rwURLString + "&" : "") + rwParameters();

	rwURLString = "http"+(window.location.protocol.indexOf('https:')==0?'s':'')+"://" + rwSetup.rwTagServerGIF + rwURLString;		

	if (rwSetup.rwSendURL == true){

		rwURLString = rwURLString + "&rw.ul=" + escape(location.href);	

	}

	rwURLString = rwURLString + "&rw.rf=" + escape(window.document.referrer);

	if (rwSetup.rwCheckMetaTags == true){

		rwURLString = rwURLString + rwMetaTags();

	}	

	if (rwSetup.rwSendTitle == true) {

		rwURLString = rwURLString + "&rw.ti=" + escape(document.title);

	}

	return rwURLString;

}

	

function rwIsCookieEnabled() {

	var rwEnabled = (typeof document.cookie == "string" && document.cookie.length>0 ? true : false);

	if ( rwEnabled == false && typeof document.cookie == "string"){

		document.cookie = "rwCheckCookie=testing";

		if (document.cookie == "rwCheckCookie=testing"){

			rwEnabled = true;

		}

	}

	return rwEnabled;	

}

	

function rwGetCookieLastValue( rwCookieName ) {

	if (typeof rwCookieName=="string" && rwCookieName.length>0){

		var rwString = "; " + rwCookieName + "=";

		var rwCookie = "; " + document.cookie;

		var rwStartPos = rwCookie.lastIndexOf( rwString );

		if (rwStartPos>-1){

			rwStartPos = rwStartPos + rwString.length;

			var rwEndPos = rwCookie.indexOf( ";", rwStartPos );

			rwString = rwCookie.substring( rwStartPos, (rwEndPos<0 ? rwCookie.length : rwEndPos ));

			return unescape(rwString);

		}

	}

	return "";

}



function rwSetCookie(name, value, expires, path, domain, secure) {

		document.cookie = name + "=" + escape (value) +

		((expires) ? "; expires=" + expires : "") +

		((path) ? "; path=" + path : "") +

		((domain) ? "; domain=" + domain : "") +

		((secure) ? "; secure" : "");

}