jQuery submit() doesn't include its value.

jQuery submit()

If we are using the button in the form for submitting the data, then it will work if we click the button.
If we are using the jQuery.submit() function for submiting the form. Then the button value doesn't submit.

For working form with the button value without an issue you just need to configure the a hidden input
and add all the button property to the hidden field.

Below is the code for configuring the form.

$("input[type=submit], input[type=button], button").click(function(e) {
    var self= $(this),
        form = self.closest(form),
        tempElement = $("<input type='hidden'/>");

    // clone the important parts of the button used to submit the form.
    tempElement
        .attr("name", this.name)
        .val(self.val())
        .appendTo(form);

    // boom shakalaka!
    form.submit();

    // we don't want our temp element cluttering up the DOM, do we?
    tempElement.remove();

    // prevent default since we are already submitting the button's form.
    e.preventDefault();
});

So while submitting the form configure a hidden field.