/*
 Function for making, reading and deleting cookies.
*/
		function CreateCookie(name, value, days)
		{
            if (days)
            {
            	var date = new Date();
                date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
                var expires = "; expires=" + date.toGMTString();
            }
            else
            {
                var expires = "";
            }
            document.cookie = name + "=" + value + expires + "; path=/";
        }

        function ReadCookie(name)
        {
            var nameEQ = name + "=";
            var ca = document.cookie.split(';');
            for (var i = 0; i < ca.length; i++) {
                var c = ca[i];
                while (c.charAt(0) == ' ') c = c.substring(1, c.length);
                if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length, c.length);
            }
            return null;
        }

        function EraseCookie(name)
        {
        	CreateCookie(name, "", -1);
        }