text: void
  togglefullscreen(const Arg *arg)
  {
  	Client *c = selmon->sel;
  	if (!c)
  		return;
  
  	if (c->fakefullscreen == 1) { // fake fullscreen --> fullscreen
  		c->fakefullscreen = 2;
  		setfullscreen(c, 1);
  	} else
  		setfullscreen(c, !c->isfullscreen);
  }
  