function SetCookie(sName, sValue, nHours) {
	var expiry = '';
	if(nHours != null) {
		var now = new Date();
		var expiryDate = new Date(now.getTime() + nHours * 3600000);
		expiry = '; path=/; expires=' + expiryDate.toGMTString();
	}
	document.cookie = sName + '=' + escape(sValue) + expiry;
}
function GetCookie(sName) {
	var aCookie = document.cookie.split('; ');
	for(var i = 0; i < aCookie.length; i++) {
		var aCrumb = aCookie[i].split('=');
		if(sName == aCrumb[0]) { return unescape(aCrumb[1]); }
	}
	return null;
}
function DelCookie(sName) {
	document.cookie = sName + '=0; expires=Fri, 31 Dec 1999 23:59:59 GMT;';
}