void
pushup(const char *arg) {
	Client *c;
	if(!sel || lt->arrange != tile || sel->isfloating)
		return;

	if((c = prevtiled(sel->prev))) {
		Client *selprev = sel->prev;
		Client *selnext = sel->next;
		Client *cprev = c->prev;
		Client *cnext = c->next;

		if(cprev) {
			if(cnext == sel) {
				cprev->next = sel;
				sel->prev = cprev;
				if(selnext)
					selnext->prev = c;
				c->next = selnext;
				sel->next = c;
				c->prev = sel;
			} else {
				cprev->next = sel;
				sel->prev = cprev;
				sel->next = cnext;
				cnext->prev = sel;

				selprev->next = c;
				c->prev = selprev;
				if(selnext)
					selnext->prev = c;
				c->next = selnext;
			}
		} else {
			detach(sel);
			attach(sel);
		}
	} else {
		c = sel;
		Client *d;
		while((d = nexttiled(c->next)))
			c = d;
		if(c && c != sel) {
			detach(sel);
			if(c->next) {
				d = c->next;
				c->next = sel;
				sel->prev = c;
				sel->next = d;
				d->prev = sel;
			} else {
				c->next = sel;
				sel->prev = c;
			}
		}
	}

	focus(sel);
	lt->arrange();
}

void
pushdown(const char *arg) {
	Client *c;
	if(!sel || lt->arrange != tile || sel->isfloating)
		return;

	if((c = nexttiled(sel->next))) {
		Client *selprev = sel->prev;
		Client *selnext = sel->next;
		Client *cprev = c->prev;
		Client *cnext = c->next;

		if(selprev) {
			if(selnext == c) {
				selprev->next = c;
				c->prev = selprev;
				c->next = sel;
				sel->prev = c;
				sel->next = cnext;
				if(cnext)
					cnext->prev = sel;
			} else {
				selprev->next = c;
				c->prev = selprev;
				selnext->prev = c;
				c->next = selnext;

				cprev->next = sel;
				sel->prev = cprev;

				if(cnext)
					cnext->prev = sel;
				sel->next = cnext;
			}
		} else {
			detach(c);
			attach(c);
		}
	} else {
		detach(sel);
		attach(sel);
	}

	focus(sel);
	lt->arrange();
}