I think this is not an issue about togglePanel or richfaces itself, but I've been googling for help and still can't find what I'm missing. I have a togglePanel floating on the left, and want it to be shown over the other elements in the page. What I've done so far is:
<rich:panel id="container">
<rich:panel id="menu" style="float:left;z-index:9500">
<rich:togglePanel id="menuToggle" stateOrder="hide,show"
switchType="client">
<f:facet name="hide">
<rich:panel id="menuHidePanel" style="border:0">
...
</rich:panel>
</f:facet>
<f:facet name="show">
<rich:panel id="menuShowPanel" style="border:0">
<h:form id="menuForm">
...
</h:form>
</rich:panel>
</f:facet>
</rich:togglePanel>
</rich:panel>
<a4j:include id="main" layout="block"
viewId="#{mainPanel.mainView}"/>
</rich:panel>