Reminder to self about disabling submits ... built to work with Django's jQuery version (1.4.2) so passing in the selector as part of the live arguments doesn't work :\

disable_submits.js

var disable_elements = function(evt) {
    // `this` is the form being submitted, in the current context ...
    $(this)
        .find('input[type="submit"], button, a.button')
        .addClass('disabled')
        .attr('readonly', 'readonly')
        .attr('disabled', 'disabled')
        .css({opacity: 0.5});
    // note: the css and disabled parts may need removing, depending 
    // on needs (ie: the css could be set on the `disabled` class)
    // and the disabled bit may not work if relying upon the value
    // in the GET/POST data.
};
$('form').live('submit', disable_elements);