Index: trunk/src/org/openstreetmap/josm/actions/OverpassDownloadAction.java
===================================================================
--- trunk/src/org/openstreetmap/josm/actions/OverpassDownloadAction.java	(revision 8712)
+++ trunk/src/org/openstreetmap/josm/actions/OverpassDownloadAction.java	(revision 8713)
@@ -86,5 +86,5 @@
 
         private OverpassDownloadDialog(Component parent) {
-            super(parent);
+            super(parent, ht("/Action/OverpassDownload"));
             cbDownloadOsmData.setEnabled(false);
             cbDownloadOsmData.setSelected(false);
Index: trunk/src/org/openstreetmap/josm/gui/download/DownloadDialog.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/download/DownloadDialog.java	(revision 8712)
+++ trunk/src/org/openstreetmap/josm/gui/download/DownloadDialog.java	(revision 8713)
@@ -209,5 +209,5 @@
         // -- help button
         SideButton btnHelp;
-        pnl.add(btnHelp = new SideButton(new ContextSensitiveHelpAction(ht("/Action/Download"))));
+        pnl.add(btnHelp = new SideButton(new ContextSensitiveHelpAction(getRootPane().getClientProperty("help").toString())));
         InputMapUtils.enableEnter(btnHelp);
 
@@ -220,5 +220,15 @@
      */
     public DownloadDialog(Component parent) {
+        this(parent, ht("/Action/Download"));
+    }
+
+    /**
+     * Constructs a new {@code DownloadDialog}.
+     * @param parent the parent component
+     * @param helpTopic the help topic to assign
+     */
+    public DownloadDialog(Component parent, String helpTopic) {
         super(JOptionPane.getFrameForComponent(parent), tr("Download"), ModalityType.DOCUMENT_MODAL);
+        HelpUtil.setHelpContext(getRootPane(), helpTopic);
         getContentPane().setLayout(new BorderLayout());
         getContentPane().add(buildMainPanel(), BorderLayout.CENTER);
@@ -241,5 +251,4 @@
             }
         });
-        HelpUtil.setHelpContext(getRootPane(), ht("/Action/Download"));
         addWindowListener(new WindowEventHandler());
         restoreSettings();