[jQuery] How to open pop-up window after success result of Validation of form?

[kibi]

I used jQuery Validation plugin.
Validation works fine. Could you tell me, how to change form
attributes, that new pop-up window raised after validation (I don’t
need alert message – only new window)

Here code of validation:
Html form : form id='f1' name='f1' method='post' action='result.htm'
 JavaScript validation code:

$(document).ready(function() {

                var validator = $("#f1").validate({

rules: { filed0: {required: true, minlength: 2},
        filed1: { required: true, minlength: 2  },
        filed2: { required: true, minlength: 2 },
…..
…..

submitHandler: function() {
alert("Form completed!");
$(form).ajaxSubmit(options);


New pop-up form:
 form id='f1' name='f1' method='post' action='result.htm'
onsubmit="window.open('','Order
Confirmation','width=600,height=600,scrollbars=yes')"
After pressing submit button – I see new page before validation : - (

What should I change in ajaxSubmit options?

Thanks for avice.