primefaces widgetVar Basic usage of widgetVar
Example
<h:form>
<p:dialog widgetVar="myDialog"></p:dialog>
<p:commandButton onclick="PF('myDialog').show();" />
</h:form>
<h:form>
<p:dialog widgetVar="myDialog"></p:dialog>
<p:commandButton onclick="PF('myDialog').show();" />
</h:form>
