[jQuery] Combining jQuery validation, ajax Submit and jqUploader

[jQuery] Combining jQuery validation, ajax Submit and jqUploader


I have a form, and i want to combing jquery validation ajax Submit and
jquploader.
This is the script
$("#RegForm").validate({
submitHandler: function(form) {
jQuery(form).ajaxSubmit({
var str = $("#RegForm").serialize();
                    $.ajax({
                            type: 'POST',
                            url: 'ajax.php',
                            data: str,
                            success: function(msg) {
                                 if(msg == 'OK') {
                                    $('#status').html('<b>Data Has Been Added to Database</b>');
                                } else {
                                    $('#status').html(msg);
                                }
                            }
                        })
                        $('form :input').val("");
                        $('form :input[type=submit]').val("Submit");
                 return false;
                 });
                 }
});
But it got an error on => var str = $("#RegForm").serialize();\n
(missing : after property id)
How to solve this ?