passing variable back to parent when fancybox window is closed

Question

I was wondering if it is possible to pass back a variable from fancybox child to parent once child is closed?

function cleanUp(){
    var bla = $("#fancybox-frame").contents().find('input[name=pd_id]');
    alert(bla.val());
}
$("#tree .product a[class!=copy]").fancybox({
    'width'             : 770,
    'height'            : '95%',
    'autoScale'         : false,
    'transitionIn'      : 'none',
    'transitionOut'     : 'none',
    'type'              : 'iframe',
    'onCleanup'         : cleanUp
}); 

Answer 1

You can see in the fancybox api : onClosed... Will be called once FancyBox is closed

$('.overlay').fancybox({
    onClosed: function() { 
        var bla = $('#targetFrame')[0].contentWindow.targetFunction(); 
    }
});

There is no child window/iframe, the box is simply an absolutely positioned div. It's in the same DOM as the page.