title: Callbacks overlapping
body: <p>I have a simple resizable div (achieved with <a href="http://docs.jquery.com/UI/API/1.8/Resizable" rel="nofollow">jQuery's resizable</a>) and I'm handling the resize event with a function.</p>
  
  <p>So, let's say that's my code:</p>
  
  <pre><code>var a = ...
  $(div).resizable({ 
      options go here...
  
      resize: function(e, ui){
          make some operations with a
          ...
          ...
          keep making operations with a
          ...
          ...
          ok, we're done
      }
  })
  </code></pre>
  
  <p>Now, let's say the resize callback is called a lot of times in a short period of time. How will javascript handle that? Will callbacks overlap the use of "a"? (Note that "a" is a global var!). 
  Am I safe with this code or there might be a conflict of some kind?</p>
  
  <p>Regards</p>