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--- a/dirbrowser/cdbrowser.h
+++ b/dirbrowser/cdbrowser.h
@@ -132,6 +132,7 @@
     void mySetHtml(const QString&);
     void doCreatePopupMenu();
     void runJS(const QString&);
+    void updateAlphamap(const std::string&);
     
     static const std::string CTTitleStartMarker;
     void init_HTML();