function setCookie(name,value,exp)
{
	var expires = new Date();
	expires.setTime(expires.getTime() + (1000 * 60 * exp));

	document.cookie = name + "=" + escape(value) + "; path=/" + ((expires == null)? " ":"; expires =" + expires.toGMTString());


}

function getCookie(name)
{
	var cname = name + "=";
	var dc = document.cookie;
	
	if (dc.length > 0)
	{
		begin = dc.indexOf(cname);
		
		if (begin != -1)
		{
			begin += cname.length;
			end = dc.indexOf(";",begin);
			
			if (end == -1) { end = dc.length; }
			return unescape(dc.substring(begin,end));
		}
	}
	return null;
}

function delCookie(name)
{
	document.cookie = name + "=; expires=Thu, 01-Jan-70 00:00:01 GMT" + "; path=/";
}