Index: /applications/editors/josm/plugins/smed/src/smed/Smed.java
===================================================================
--- /applications/editors/josm/plugins/smed/src/smed/Smed.java	(revision 29904)
+++ /applications/editors/josm/plugins/smed/src/smed/Smed.java	(revision 29905)
@@ -3,4 +3,5 @@
 import org.openstreetmap.josm.Main;
 import org.openstreetmap.josm.gui.MainMenu;
+import org.openstreetmap.josm.gui.MapFrame;
 import org.openstreetmap.josm.plugins.Plugin;
 import org.openstreetmap.josm.plugins.PluginInformation;
@@ -8,7 +9,15 @@
 public class Smed extends Plugin {
 
+	SmedAction dialog = new SmedAction();
+	
 	public Smed(PluginInformation info) {
-        super(info);
-        MainMenu.add(Main.main.menu.toolsMenu, new SmedAction());
-    }
+		super(info);
+		MainMenu.add(Main.main.menu.toolsMenu, dialog);
+	}
+	
+	public void mapFrameInitialized(MapFrame oldFrame, MapFrame newFrame) {
+		if (newFrame == null) {
+			dialog.closeDialog();
+		}
+	}
 }