Button value onclick

Hi,
It is possible to retreive the button value when i click on it?
I var_dump the $_POST or $_REQUEST and i get all information about my form but nothing about the input buttons.
So i ask me about the possibility.

Thanks,
Gody,

 

Just add ?action=youraction on onclick submitForm call:
onclick="submitForm('pageForm','host/host_action.php?action=stop')

We retreive it with $_REQUEST['action']