title: toggle UIButton-state when pressing, like a switch
body: <pre><code>-(void)setState:(id)sender
  {
      UIButton* button = (UIButton*)sender;
      BOOL buttonBool = ([button state]==selected : YES ? NO);
      [sender setSelected:buttonBool++];
  
  }
  </code></pre>
  
  <p>this is my idea, but i cant figure out the actual state of the button calling the funktion.
  any button, that calls this funktion, should be toggled between default and selected-state, so that it works like a switch. i just need to have own background-graphics, else i had used a switch.</p>
  
  <p>so, can anyone please correct my idea ?</p>