67139 - title of active window should be checked in tasks menu. r=ben sr=hewitt

suite/common/tasksOverlay.js

@@ -216,4 +216,20 @@ function ShowUpdateFromResource( node )
 	OpenTaskURL( "http://www.mozilla.org/binaries.html");
 }
 
+function checkFocusedWindow()
+{
+  var windowManager = Components.classes['@mozilla.org/rdf/datasource;1?name=window-mediator'].getService();
+  var windowManagerInterface = windowManager.QueryInterface(Components.interfaces.nsIWindowMediator);
+
+  var sep = document.getElementById("sep-window-list");
+  while (sep = sep.nextSibling) {
+    var url = sep.getAttribute('id');
+    var win = windowManagerInterface.getWindowForResource(url);
+    if (win == window) {
+      sep.setAttribute("checked", "true");
+      break;
+    }
+  }
+}
+
 

suite/common/tasksOverlay.xul

@@ -29,11 +29,12 @@
 
 
       <!-- Tasks Menu -->
-      <menu id="tasksMenu" label="&tasksMenu.label;" accesskey="&tasksMenu.accesskey;" datasources="rdf:window-mediator" ref="NC:WindowMediatorRoot">
+      <menu id="tasksMenu" label="&tasksMenu.label;" accesskey="&tasksMenu.accesskey;" datasources="rdf:window-mediator" ref="NC:WindowMediatorRoot"
+            onpopupshown="checkFocusedWindow();">
         <template>
           <rule>
             <menupopup>
-              <menuitem uri="rdf:*" label="rdf:http://home.netscape.com/NC-rdf#KeyIndex rdf:http://home.netscape.com/NC-rdf#Name" 
+              <menuitem uri="rdf:*" label="rdf:http://home.netscape.com/NC-rdf#KeyIndex rdf:http://home.netscape.com/NC-rdf#Name" type="radio"
                         oncommand="ShowWindowFromResource(event.target)" accesskey="rdf:http://home.netscape.com/NC-rdf#KeyIndex"/>
             </menupopup>
           </rule>
@@ -62,7 +63,7 @@
               <menuitem label="&javaScriptConsoleCmd.label;" accesskey="&javaScriptConsoleCmd.accesskey;" oncommand="toJavaScriptConsole();"/>
             </menupopup>
           </menu>
-          <menuseparator/>
+          <menuseparator id="sep-window-list"/>
 
         </menupopup>
       </menu>