Java EE (Java Enterprise Edition) General Discussion

Hi every body ,
I have a serious problem in jsf <h:selectOneRadio> component.

I am using two different <h:selectOneRadio> component .When I am clicking the first radio button I can get data from the data base & showing in my jsf , same as in the second radio button .
My problem is , I want to un check the first radio when I am clicking the second one .
Here is my code .

<h:selectOneRadio layout="pageDirection"  immediate ="true"  									valueChangeListener="#{multiSite.getValue1}" onclick="submit()">
	<f:selectItem id="item1" itemLabel="My value-1" itemValue="1" />
</h:selectOneRadio>
<h:outputText value="" />

<h:panelGrid width="100%" rendered="#{multiSite.renderValue1}">
	<h:selectOneRadio styleClass="radioButtonDataText" layout="pageDirection"  immediate ="true" >
		<f:selectItems value="#{multiSite.myMap1}"/>
	</h:selectOneRadio>
	<h:outputText value="" />
	<h:outputText value="" />
</h:panelGrid>

<h:selectOneRadio layout="pageDirection" immediate ="true" 
valueChangeListener="#{multiSite.getValue2}" onclick="submit()" >
	<f:selectItem id="item2" itemLabel="My value-2" itemValue="2" />
</h:selectOneRadio>

<h:panelGrid width="100%" rendered="#{multiSite.renderValue2}">
	<h:selectOneRadio styleClass="radioButtonDataText" layout="pageDirection"  immediate ="true" >
		<f:selectItems value="#{multiSite.myMap2}"/>
	</h:selectOneRadio>
	<h:outputText value="" />
	<h:outputText value="" />
</h:panelGrid>

Thanks ,
SB