jquery.preventDoubleSubmit

jquery.preventDoubleSubmit.js

/**
 * A jquery plugin to prevent a form being submitted twice
 *
 * You'd use this on the form itself
 * $('form').preventDoubleSubmit();
 */
;(function($) {

    function submitHandler(e) {
        var $form = $(this);

        if ($form.data('submitted') === true) {
            // Previously submitted - don't submit again
            return false;
        } else {
            // Mark it so that the next submit can be ignored
            $form.data('submitted', true).addClass('form-submitted');
        }
    }

    $.fn.preventDoubleSubmit = function() {
        return this
            .unbind('submit', submitHandler)
            .bind('submit', submitHandler)
        ;
    };

})(jQuery);