What JavaScript function will auto-submit a Qualtrics survey?

Question

What JavaScript function will auto-submit a Qualtrics survey? I want to create a button in the header or footer of a Qualtrics survey that will automatically submit the survey whenever the user wants to quit. It seems like a pretty standard feature for survey software to have. The question may not seem well researched but that's because there are NO Qualtrics resources out there on this.

I found parts of the Qualtrics JS that might be relevant:

function pressSubmitButtonOnEnter(evt, id) {
    if (evt.keyCode == Event.KEY_RETURN) {
        Event.stop(evt);
        $(id).click();
        return false;
    }
}

This one as well:

function submitForm(formID) {
    var form = $(formID);
    if (form) {
        Event.fire(form, 'submit');
        if (form.onsubmit)
            form.onsubmit();
        if (form.submit)
            form.submit();
        return true;
    }
}
function submitFormJumpTo(formID, jumpTo) {
    $(formID).action = jumpTo;
    submitForm(formID);
}

This:

var SEonSubmit = {
    add : function (onSubmitFunction) {
        Event.observe('Page', 'submit', onSubmitFunction);
    }
};
var SEonClick = {
    add : function (onClickFunction) {
        Event.observe('Page', 'click', onClickFunction);
    }
};

Answer 1

According to Qualtrics, there is no way to do this. I submitted a request feature.