a4j:commandButton onsubmit

[mrohad]

why commandButton doesn't have onsubmit?
I need to make some validation in Javascript before submiting ...
how can I do that?

thanks

[janson12]

use: onclick="if(myvalidatingFunction()==false){return false}"
hope that helps..

[mrohad]

awesome thanks ,
I don't understand why onclick="return someFunc()"
isn't enough?