title: How to perform selectors with an argument?
body: <p>How do you perform selectors with an argument? This is my code:</p>
  
  <pre><code>SEL methods=NSSelectorFromString([arrayWithMethods objectAtIndex:i]);
  [self performSelector:methods withObject:self afterDelay:MAN_SPEED*i];
  </code></pre>
  
  <p>If my selector method has an argument, how do I specify it?</p>