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;
}