validartTabs.js

$('button[type="submit"]').click(function () {
    $('input:invalid').each(function () {
        // Find the tab-pane that this element is inside, and get the id
        var closest = $(this).closest('.tab-pane');
        var id = closest.attr('id');

        // Find the link that corresponds to the pane and have it show
        $('.nav a[href="#' + id + '"]').tab('show');

        // Only want to do it once
        return false;
    });
});