plupload question

jQuery(function($){
	//alert($.fn.jquery)

	var siteurl		=	$('div#new_talk_container').find('input#siteurl').attr('value');
	var themeurl	=	$('div#new_talk_container').find('input#themeurl').attr('value');


	var myUploader = new plupload.Uploader({
		runtimes: 'html5,flash',
		browse_button: 'browse_file', // id of the browser button
		max_file_size: '5mb',
		unique_names: true,
		file_data_name: 'filedata',
		filters : [
			{
			title : "Allowed files",
			extensions : "jpg,gif,png"
			},
		],
		multiple_queues: false,
		multipart: true,              // <- this is important because you want
		multi_selection:true,
									  //    to pass other data as well
		url: ajax_object.ajaxurl,
	});

	myUploader.init();

	myUploader.bind('FilesAdded', function(up, files){
		$('#browse_file').text('Selected: ' + files[0].name);
		// alert(files[0].toSource());
		// do a console.log(files) to see what file was selected...
	});


	// before upload starts, get the value of the other fields
	// and send them with the file
	myUploader.bind('BeforeUpload', function(up) {
		myUploader.settings.multipart_params = {
			action: 'action_insert_newtalk',
			talk_text: $('div#new_talk_container').find('#newTalkTxt').attr('value'),
			talk_author_id: $('div#current_user_id').find('input#current_user_id').attr('value')
		};
	});


	// equivalent of the your "success" callback
	myUploader.bind('FileUploaded', function(up, file, ret){

		var $response		=	$(ret.response);
		var brandNewTalk 	=	$response.filter('#brandNewTalk').html();

			if(brandNewTalk) {
				setTimeout(function(){
					$('div#newTalkAfter').append(brandNewTalk);
					$('div#newTalkAfter').fadeIn('slow');
				}, 500);

				$('#newTalkTxt').val('');
			}

	});


	// trigger submission when this button is clicked
	$('div#publish_new_talk').on('click', function(e) {
		myUploader.start();
		e.preventDefault();
	});

});