Submitting forms with pagination

Hi,

I know the examples for sending forms with serialize(), e.g. described on this page:
http://www.datatables.net/examples/api/form.html

But I am not able to send all elements in a form. My code looks like this:

$('#myform').submit( function() {
      var sData = $(':checkbox', oTable.fnGetNodes()).serialize();
      alert( "The following data would have been submitted to the server: \n\n"+sData );
      return true;
    });    

But I only see the first two selected checkboxes in my GET string:

file:///home/andi/downloads/DataTables-1.9.4/DataTables-1.9.4/untitled.html?example_length=10&lala=on&lala3=on

The value "lala2=on" is missing in my case.

Do I need to submit the values myself somehow? The alert box shows all entries, only the GET string is missing everything that is not on the first pagination page.

Thanks for your help, I'm new to Javascript and jQuery, so maybe this is a stupid question for some of you :-)

Andi