$(document).ready( function() {
$('#example').dataTable({
"aaSorting": []
});
})
For Datatable Version > 1.10
$(document).ready( function() {
$('#example').dataTable({
"order": []
});
})
$(document).ready( function() {
$('#example').dataTable({
/* Disable initial sort */
"aaSorting": []
});
})