var lgtSurveyMaxPageViews=3; //number of pages the visitor sees before the survey appears.  If surveyMaxPageViews is 3, visitor will see survey on the 4th page they visit.
	//var lgtSurveyMaxPageViews=1; //number of pages the visitor sees before the survey appears.  If surveyMaxPageViews is 3, visitor will see survey on the 4th page they visit.
	var lgtSurveyBtnStartColour="#33CC00"; // survey button colour - normal
	var lgtSurveyBtnActiveColour="#FF0000"; // survey button colour - on hover 

function lgtSurveyCountPages(){
	var theCookie=""+document.cookie;
	var indCP=theCookie.indexOf("lgtSurveyCountPages");
	var indHS=theCookie.indexOf("lgtSurveyHideSurvey");
	if (indCP==-1 && indHS==-1)
		lgtSurveyStartCountingPages(); 
	else if(indHS==-1){
		var ind1CP=theCookie.indexOf(';',indCP);
		if (ind1CP==-1) ind1CP=theCookie.length;
		var numPages = unescape(theCookie.substring(indCP+"lgtSurveyCountPages".length+1,ind1CP));
		if(numPages == lgtSurveyMaxPageViews){
			//alert("you've seen more than "+numPages+" pages - We'll now show you the survey");
 		//	clearCookie("lgtCountPages"); //this resets cookie to zero so would cause survey to popup again after (surveyMaxPageViews-1) pages.
			//lgtSurveyShowSurvey();
		}
		else{
			numPages++;
			//alert("you've seen "+numPages+" pages");
			var today = new Date();
			var expire = new Date();
			//if (nDays==null || nDays==0) nDays=1;
			nDays=1;
			expire.setTime(today.getTime() + 3600000*24*nDays);
			document.cookie = "lgtSurveyCountPages="+numPages+";path=/;expires="+expire.toGMTString();
		}
	}
}

function lgtSurveyStartCountingPages(){
	//alert("this is the first page you've visited");
	var today = new Date();
	var expire = new Date();
	//if (nDays==null || nDays==0) nDays=1;
	nDays=1;
	expire.setTime(today.getTime() + 3600000*24*nDays);
	document.cookie = "lgtSurveyCountPages=1;path=/;expires="+expire.toGMTString();
}

function lgtSurveyClearCookie(cookieName){
	//alert("clearingCookie "+cookieName);
	var today = new Date();
	var expire = new Date();
	//if (nDays==null || nDays==0) nDays=1;
	nDays=1;
	expire.setTime(today.getTime() + 3600000*24*nDays);
	document.cookie = cookieName+"=0;expires=Thu, 01-Jan-1970 00:00:01 GMT";
}

function lgtSurveyShowSurvey(){
	document.getElementById('lgtSurvey').style.visibility="visible";	
}

function lgtSurveyHideSurvey(){
	document.getElementById('lgtSurvey').style.visibility="hidden";
	var today = new Date();
	var expire = new Date();
	//if (nDays==null || nDays==0) nDays=1;
	nDays=100; // visitor won't see survey for at least 100 days
	expire.setTime(today.getTime() + 3600000*24*nDays);
	document.cookie = "lgtSurveyHideSurvey=1;path=/;expires="+expire.toGMTString();
}


function lgtSurveyBtnHighlight(btn){
	document.getElementById(btn).style.backgroundColor=lgtSurveyBtnActiveColour;
}
function lgtSurveyBtnNormal(btn){
	document.getElementById(btn).style.backgroundColor=lgtSurveyBtnStartColour;
}

function lgtSurveyLater(surveyURL){
	var myWin=window.open(surveyURL,'survey','width=600,height=400,resizable=yes,scrollbars=yes');
	myWin.blur();
	lgtSurveyHideSurvey();
}
lgtSurveyCountPages();