diff -r dffe81e7e32e event.c
--- a/event.c	Sat Jul 14 21:14:15 2007 +0200
+++ b/event.c	Sun Jul 22 16:45:35 2007 +0200
@@ -144,6 +144,10 @@ buttonpress(XEvent *e) {
 				setlayout(NULL);
 				break;
 			}
+                else if ( ev->button == Button4 )
+                  focusclient("-1");
+                else if ( ev->button == Button5 )
+                  focusclient("1");
 	}
 	else if((c = getclient(ev->window))) {
 		focus(c);