How to hide the dropdown box in my search screen

hi,
I am new to jsf. Here , i am posting the question first time.
I am developing a search screen. I want to hide one dropdown box in that. can anybody help me on that?
This is the code :
<h:panelGrid rendered="true" width="100%" border="0" cellpadding="10" cellspacing="10" columns="2" styleClass="tabletext" style="vertical-align: top">
<h:panelGrid rendered="true" border="0" columns="1" style="vertical-align: top;">
     <h:outputLabel rendered="true" value="Ranger District:"> </h:outputLabel>
     <h:panelGroup id="regionDropdown">
                              <h:selectOneMenu rendered="true" id="rangerDistrict" value="#{energySearchBean.district}">
                              <f:selectItems value="#{energySearchBean.districts}"/>
               </h:selectOneMenu>
               </h:panelGroup>
          </h:panelGrid>
</h:panelGrid>
Thanks in advance.

If you want to hide it at the server side, use the 'rendered' attribue and let its value evaluate to 'false'. If you want to hide it at the client side, use the CSS 'display' property and set it to 'none'.
By the way, having 'rendered="true"' hardcoded in all components is superfluous. It is just the default value.

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