function setEmail(str)
		{
			var expiryDate = new Date();
			expiryDate.setTime(expiryDate.getTime() + 365*24*60*60*1000);
			document.cookie = "MemberEmail=" + escape(str) + "; expires=" + expiryDate.toGMTString();
		}
		
		function getEmail()
		{
			str = document.cookie + ";";
			i = str.indexOf("MemberEmail");
			if (i < 0)
				return '';
		
			j = str.indexOf(";", i);
			if (j < 0)
				return '';
		
		  var email=unescape(str.substr(i+12, j-i-12));
		  return email;
		}