Capturing move from JSF page

[Richard Roszak]

I would like to capture movement in my application as the user changes from web page to web page using a dropdown menu. The navigation is done with a <a4j:commandLink. Is there a method similar to ontableave used in <rich:tab to acomplish this?

Thanks

[Kavita Tipnis]

I don't understand your question completely, are you trying to call a javascript function after the user clicks on the link
or do you have an onchange event of the dropdown which will navigate the user to different pages?

[Richard Roszak]

What I want to do is when the user chooses a option in the <h:selectOneMenu currently it refreshes the page with new data but same jsp. The new data is of a different version. What I want to do is warn the user that he is going to a diffeerent version of the page and will loose any changes they made. I know how to trap whether a change was made but don't know how to pop up an alert befeore the version is changed.
I have a javascript that will pop an alert if the user is going to another page but need to implement it for new version same page.

If I call the javascript before the "a4j:support event="onchange" action="#{" nothing happens. So I need to know how to call the javascript before the action to load the version.

 <h:selectOneMenu id="round" value="#{Bean.versionSelection}">
	<a4j:support event="onchange" action="#{StartListBean.changeVersion}" status="loadStatus" reRender="list_panel"/>
	<f:selectItems value="#{StartListBean.roundSelectionItems}" />
</h:selectOneMenu>