Index: src/org/eclipse/ui/views/navigator/ResourceNavigator.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.ui.ide/src/org/eclipse/ui/views/navigator/ResourceNavigator.java,v
retrieving revision 1.37
diff -u -r1.37 ResourceNavigator.java
--- src/org/eclipse/ui/views/navigator/ResourceNavigator.java	8 May 2006 20:54:08 -0000	1.37
+++ src/org/eclipse/ui/views/navigator/ResourceNavigator.java	21 Jul 2006 01:46:52 -0000
@@ -72,6 +72,7 @@
 import org.eclipse.ui.PlatformUI;
 import org.eclipse.ui.ResourceWorkingSetFilter;
 import org.eclipse.ui.actions.ActionContext;
+import org.eclipse.ui.actions.OpenResourceAction;
 import org.eclipse.ui.ide.ResourceUtil;
 import org.eclipse.ui.internal.ide.IDEWorkbenchPlugin;
 import org.eclipse.ui.internal.views.navigator.ResourceNavigatorMessages;
@@ -695,6 +696,10 @@
         TreeViewer viewer = getTreeViewer();
         if (viewer.isExpandable(element)) {
             viewer.setExpandedState(element, !viewer.getExpandedState(element));
+        } else if ((((IResource)element).getType() & IResource.PROJECT) != 0) {
+        	OpenResourceAction ora = new OpenResourceAction(getViewSite().getShell());
+        	ora.selectionChanged((IStructuredSelection)getTreeViewer().getSelection());
+        	ora.run();
         }
 
     }