/**
 * AjaxSubmit 1.0
 *
 * Submits a form using XHR. Grabs all form-controls
 * with name-attributes and submits to form's action
 * using form's method or custom action/method set in conf
 *
 * @class ajaxSubmit
 * @param {String|Function} foo, CSS-selector to element to be updated with XHR-response or callback function for XHR-call (data is passed to function)
 * @param {Object} conf, custom config-object
 * 
 * Copyright (c) 2008 Andreas Lagerkvist (andreaslagerkvist.com)
 * Released under a GNU General Public License v3 (http://creativecommons.org/licenses/by/3.0/)
 */
jQuery.fn.ajaxSubmit = function(foo, conf) {
        var config = {
                method: false,  // request method (get/post) defaults to form's
                action: false,  // action (url) defaults to form's
                loading: 'Loading...'
        };
        config = jQuery.extend(config, conf);

        var callback = (typeof(foo) === 'string') ? function(data) {jQuery(foo).html(data);} : (typeof(foo) === 'function') ? foo : false;

        return this.each(function() {
                var form = jQuery(this);

                if(form.is('form')) {
					var method = config.method || form.attr('method');
					var action = config.action || form.attr('action');
					var submit = jQuery('input[type="submit"]', form);
					var data = {};
					
					form.submit(function() {
						jQuery('*[name]', form).each(function() {
								var t = jQuery(this);
								var val = (t.attr('type') == 'checkbox') ? (t.attr('checked') == true) ? 1 : 0 : t.val();
								data[t.attr('name')] = val;
						});
			
						var f = this;
						var submitButton = submit.replaceWith('<table id="submit_loading_div"><tr><td style="padding-right:10px;"><img src="/images/tiny_spinner.gif" /></td> <td><strong>Envoi en cours...</strong></td></table>');
						jQuery[method.toLowerCase()](action, data, function(data) {
								$("#submit_loading_div").replaceWith(submitButton);
								f.reset();
								callback(data);
						});
						return false;
					});
                }
        });
};