function writeCookie(emailCode)
{
 // set expiry date
 var expHours = 1;
 var exp = new Date();
 exp.setTime(exp.getTime() + (expHours*60*60*1000));
 var cd = exp.toGMTString();
 var cTime = new Date();

 // set cookie parameters
 var c = "emailCode=" + escape(emailCode) + ";path=\;expires=" + cd;
 
 // write cookie
 document.cookie = c;
}

function getCookieVal (offset) {
var endstr = document.cookie.indexOf (";", offset);
if (endstr == -1)
	endstr = document.cookie.length;
return unescape(document.cookie.substring(offset, endstr));
}

function GetCookie (name) {
var arg = name + "=";
var alen = arg.length;
var clen = document.cookie.length;
var i = 0;
while (i < clen) {
var j = i + alen;
if (document.cookie.substring(i, j) == arg)
{
	return getCookieVal (j);
}

i = document.cookie.indexOf(" ", i) + 1;
if (i == 0) break;
}
return null;
}

function DeleteCookie (name) {
var exp = new Date();
exp.setTime (exp.getTime() - 1);
var cd = exp.toGMTString();

var cval = GetCookie (name);
var c = "emailCode=" + escape(name) + ";path=\;expires=" + cd;
 
 // write cookie
 document.cookie = c;
}