--- config.def.h	Sat Dec 13 12:39:14 2008
+++ config.def.h	Sat Dec 13 12:36:21 2008
@@ -62,6 +62,8 @@ static Key keys[] = {
 	{ MODKEY,                       XK_l,      setmfact,       {.f = +0.05} },
 	{ MODKEY,                       XK_Return, zoom,           {0} },
 	{ MODKEY,                       XK_Tab,    view,           {0} },
+	{ MODKEY,                       XK_Right,  viewnext,       {0} },
+	{ MODKEY,                       XK_Left,   viewprevious,   {0} },
 	{ MODKEY|ShiftMask,             XK_c,      killclient,     {0} },
 	{ MODKEY,                       XK_t,      setlayout,      {.v = &layouts[0]} },
 	{ MODKEY,                       XK_f,      setlayout,      {.v = &layouts[1]} },
--- dwm.c	Sat Dec 13 12:39:15 2008
+++ dwm.c	Sat Dec 13 12:38:48 2008
@@ -198,6 +198,8 @@ static void updatestatus(void);
 static void updatetitle(Client *c);
 static void updatewmhints(Client *c);
 static void view(const Arg *arg);
+static void viewnext(const Arg *arg);
+static void viewprevious(const Arg *arg);
 static int xerror(Display *dpy, XErrorEvent *ee);
 static int xerrordummy(Display *dpy, XErrorEvent *ee);
 static int xerrorstart(Display *dpy, XErrorEvent *ee);
@@ -1631,6 +1633,40 @@ view(const Arg *arg) {
 	seltags ^= 1; /* toggle sel tagset */
 	if(arg->ui & TAGMASK)
 		tagset[seltags] = arg->ui & TAGMASK;
+	arrange();
+}
+
+void
+viewnext(const Arg *arg) {
+	unsigned int i;
+
+	for(i = 0; i < LENGTH(tags); i++) {
+		if((1 << i & TAGMASK) == tagset[seltags]) {
+			seltags ^= 1;
+			if(i == LENGTH(tags) - 1)
+				tagset[seltags] = 1 << 0 & TAGMASK;
+			else
+				tagset[seltags] = 1 << (i + 1) & TAGMASK;
+			break;
+		}
+	}
+	arrange();
+}
+
+void
+viewprevious(const Arg *arg) {
+	unsigned int i;
+
+	for(i = 0; i < LENGTH(tags); i++) {
+		if((1 << i & TAGMASK) == tagset[seltags]) {
+			seltags ^= 1;
+			if(i == 0)
+				tagset[seltags] = 1 << (LENGTH(tags) - 1) & TAGMASK;
+			else
+				tagset[seltags] = 1 << (i - 1) & TAGMASK;
+			break;
+		}
+	}
 	arrange();
 }