T5 : Event system

[Stephane Decleire]

I've tried without success to add an "onchange" event on a select box 
without firing the submit of the form.

@OnEvent(value="onChange", component="mySelect")
private String select() {
   log.info("new item selected");
   return null;
}
Did i miss something or is the only way to get an event on a select is 
to submit the form ?
Thanks in advance.

Stephane