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