fnReloadAjax wait for finish

Hello Allan,

I need that the execution of the following alert, it will be after the fnReloadAjax, but when de alert appear, the fnReloadAjax not be finished.
How can I do If I want that the alert show when de fnReloadAjax finish please??

oTable.fnReloadAjax();               

alert('OK!!');
//I need here will be executed after fnReloadAjax
...
...
...

Thank you!