title: Prevent second execution until the first ends in jquery
body: <p>I have the following code...</p>
  
  <pre><code>$("#myID").click(function(){
  
      //do some ajax requisition here
      //make it appears in screen with a fadeIn(300)
  
  });
  </code></pre>
  
  <p>#myID is an id of one tag </p>
  
  <p>But i need that this function was not called again until the actual execution ends, i tried put many different code before e after the comments but with no success, if you can help me to prevent that second execution!</p>
  
  <p>The fadeIn() don't hold the execution, the code after it was executed while the effect is occurring, can someone help me?</p>
  
  <p>Thanks</p>