function ExportExcel(url, vals) {

        var form = jQuery("<form action='" + url + "'  method='post'></form>");

        for (var key in vals) {

            var hInput = $("<input type='hidden'></input>").attr("name", key).val(vals[key]);

            form.append(hInput);

        }

        jQuery("body").append(form);

        form.submit();

        form.remove();

}