diff --git a/lib/OpenLayers/Control/PanZoomBar.js b/lib/OpenLayers/Control/PanZoomBar.js
index f744957590..267f41a031 100644
--- a/lib/OpenLayers/Control/PanZoomBar.js
+++ b/lib/OpenLayers/Control/PanZoomBar.js
@@ -103,6 +103,10 @@ OpenLayers.Control.PanZoomBar.prototype =
         centered = centered.add(0, zoomStopSize*(this.map.getZoomLevels()+1));
         return centered; 
     },
+    /*
+     * divClick: Picks up on clicks directly on the zoombar div
+     *           and sets the zoom level appropriately.
+     */
     divClick: function (evt) {
         var y = evt.xy.y;
         var top = Position.page(evt.object)[1];