     private function restoreNavigatorInPopUp():void
     {
         // Restore old layout constraints
+        viewNavigatorPopUp.explicitWidth = _popUpNavigatorSizeCache.viewNavigatorPopUpWidth;
+        viewNavigatorPopUp.explicitHeight = _popUpNavigatorSizeCache.viewNavigatorPopUpHeight;
+        
         _popUpNavigator.percentWidth = _popUpNavigatorSizeCache.percentWidth;
         _popUpNavigator.percentHeight = _popUpNavigatorSizeCache.percentHeight;
         _popUpNavigator.explicitWidth = _popUpNavigatorSizeCache.explicitWidth;

        
        // Open the popup
        viewNavigatorPopUp.open(owner, true);
    }
    
    /**

                                     explicitWidth: _popUpNavigator.explicitWidth,
                                     explicitHeight: _popUpNavigator.explicitHeight };
        
        // If an explict width or height is not set on the navigator, change
        // the percent bounds to 100% so that the navigator fills the entire
        // bounds of the popup.
        if (isNaN(_popUpNavigator.explicitWidth))
            _popUpNavigator.percentWidth = 100;
        
        if (isNaN(_popUpNavigator.explicitHeight))
            _popUpNavigator.percentHeight = 100;
        
        viewNavigatorPopUp.addEventListener(PopUpEvent.OPEN, viewNavigatorPopUp_openHandler);
        viewNavigatorPopUp.addEventListener('mouseDownOutside', navigatorPopUp_mouseDownOutsideHandler, false, 0, true);
        viewNavigatorPopUp.addElement(_popUpNavigator);
        
