--- markerclusterer.js	Wed Nov 25 09:00:35 2009
+++ markerclusterer-mod.js	Wed Nov 25 09:02:09 2009
@@ -464,6 +464,15 @@
     this.addMarkers(opt_markers);
   }
 
+  //###max
+  this.destroy = function(){
+	this.clearMarkers();
+	GEvent.removeListener(mcfn_);
+	mcfn_ = null;
+	me_ = null;
+  }
+  //###max
+
   // when map move end, regroup.
   mcfn_ = GEvent.addListener(map_, "moveend", function () {
     me_.resetViewport();