function setCookie(c_name, value, expireDays)
{
	var exDate = new Date();
	exDate.setDate(exDate.getDate() + expireDays);
	document.cookie = c_name + "=" + escape(value) + ((expireDays == null) ? "" : ";expires=" + exDate.toGMTString());
}

function getCookie(c_name)
{
	if (document.cookie.length > 0) {
		c_start = document.cookie.indexOf(c_name + "=");
		if (c_start != -1) {
			c_start = c_start + c_name.length+1;
			c_end   = document.cookie.indexOf(";", c_start);
			if (c_end == -1)
				c_end = document.cookie.length;
			return unescape(document.cookie.substring(c_start,c_end));
		}
	}
	return "";
}