title: How to check if CCAction is running - cocos2d
body: <p>I'm using Cocos2d to write game for iPhone.
  Here's the problem.</p>
  
  <p>I have CCSprite and CCAction which is run on it.</p>
  
  <pre><code>CCSprite texture;
  CCAction anim_action;
  </code></pre>
  
  <p>"Anim_action" is a CCRepeatForever action.
  Now I want to check if this animation is running.</p>
  
  <p>First I though I can use [isDone] function, but I think it doesn't work on CCRepatForever actions (I'm not sure - this opion is based on my tests)</p>
  
  <p>So how to check if this animation is already running on my "texture"?</p>
  
  <p>Maybe there is a way to get name of action which is running on texture at the moment?
  It may be also useful!</p>