+ scrollY = ((int[]) evt.getNewValue())[1]
+ - ((int[]) evt.getOldValue())[1];
+
+ // System.out.println("SC dx dy " + scrollX + " " + scrollY);
+
+ if (scrollX != 0 && scrollY != 0)
+ {
+ // all sorts of problems in JavaScript if this is commented out.
+ repaint();
+ return;
+
+ }