.getScript getting the redirect url of javascript

Question

I d like to execute a remote javascript which redirects the user to another page on my domain with data that s passes as query string. I want to get this data which is passed on to the page on my domain.

        $.getScript('http://site.com/foo.js', function() {
            //foo.js redirects to another page on my domain with data
            // and i d like to capture that data from this function, 
            // at least if i find the parameters that passed on there, i ll be fine.  
        });

What to do ?

http://api.jquery.com/jQuery.getScript/