title: popup div like http://www.kelkoo.co.uk/
body: <p>go to <a href="http://www.kelkoo.co.uk/" rel="nofollow noreferrer">http://www.kelkoo.co.uk/</a> and click on the down arrow of the category link a popup div will appear ...i need similar kind of pop up div.the data will be loaded dynamically and in the time of loading a loading image will also appear in the middle of div.</p>
  
  <p>plz see these image </p>
  
  <p><a href="http://picasaweb.google.com/ks.it2003/Public#5416537947568789362" rel="nofollow noreferrer">loading image</a></p>
  
  <p><a href="http://picasaweb.google.com/ks.it2003/Public#5416537952240886498" rel="nofollow noreferrer">loaded image</a></p>
  
  <p>N.B plz notice if i click for 2nd time the loading image does not appear plz help me to achieve similar kind of functionality  </p>