How to Send method POST to ajax calls

How to Send method POST for ajax calls in DataTables , help help please thanks..
example
$(document).ready(function() {
$('#example').dataTable( {
"bProcessing": true,
"bServerSide": true,
"sAjaxSource": "/index/ajaxpost" // Zend Framework (PHP)
example (here method POST): POST params =>(how to send method)

} );
} );