Switch to side-by-side view

--- a/src/qtgui/advsearch_w.h
+++ b/src/qtgui/advsearch_w.h
@@ -59,6 +59,7 @@
 	init();
     }
     ~AdvSearch(){}
+    virtual bool eventFilter(QObject *target, QEvent *event);
 
 public slots:
     virtual void delFiltypPB_clicked();