ss="block"><p class="changed_added_2_2">
 Return a String value that uniquely identifies this <code>ClientWindow</code> within the scope of the current
 session. See <a href="../../../jakarta/faces/lifecycle/ClientWindow.html#decode-jakarta.faces.context.FacesContext-"><code>decode(jakarta.faces.context.FacesContext)</code></a> for the specification of how to derive this value.
 </p></div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the id of the <code>ClientWindow</code></dd>
<dt><span clas