// Numeric only control handler
jQuery.fn.ForceNumericOnly =
function () {
    return this.each(function () {
        $(this).keydown(function (e) {
            var key = e.charCode || e.keyCode || 0;
            // allow backspace, tab, delete, arrows, numbers and keypad numbers ONLY
            return (
                key == 8 ||
                key == 9 ||
                key == 46 ||
                (key >= 37 && key <= 40) ||
                (key >= 48 && key <= 57) ||
                (key >= 96 && key <= 105));
        });
    });
};