Submitting a jQuery ajax form with two submit buttons

Question

I have a form that looks like this:

Answer 1

I don't get how return false and preventDefault failed to do their job. Maybe try replacing the image buttons with linked images:

<a href="#" class="vote_down"><img src="vote_down.png"/></a>

$('#vote_form > a').click(function(e) {
    e.preventDefault();

    //one way to know which image was clicked
    alert($(this).attr('class'));

    $.post(...
});

You can always ensure that a form does not submit by binding to the submit event, e.g.:

$('#vote_form').submit(function() {
    return false;
});

Answer 2

Try adding onsubmit="return false;" to your form, and then submitting your form with javascript:

<form action="/vote/" method="post" name="vote_form" class="vote_form" onsubmit="return false;">
    <input type="hidden" name="question_id" value="10" />
    <input type="image" src="vote_down.png" class="vote_down" name="submit" value="down" onclick="imageClicked(this)"/>
    <input type="image" src="vote_up.png" class="vote_up" name="submit" value="up" onclick="imageClicked(this)"/>
</form>

<script>
function imageClicked(img) {
    alert(img.className);
    document.forms["vote_form"].submit();
}
</script>