title: Ajax support In h:selectOneMenu
body: <p>I have to call backend code as soon as one value is selected from drop-down list. I am using JSF 2.0. In JSF 1.2 I did it by using <code>&lt;a4j:support&gt;</code> in <code>&lt;h:selectOneMenu&gt;</code>, but I am not geting how to do it in JSF 2.0.</p>