JSF SelectOneMenu valueChangeListener

Today I used the following code in one of my projects...(the below is just a pseudo code..)

Inside the bean I had:
    public void mymethod(ValueChangeEvent ve)
    {
      ...
      ...
    }

I hoped that changing value on the select menu would fire the method but instead nothing happened...if you are also stuck at this point...change the code as follows:

Notice the onchage attribute that is newly added...this will fire the method...

Hope this helps...