how i can make jquery top box like stackoverflow.com
<blockquote>
  <p><strong>Possible Duplicates:</strong><br>
  <a href="http://stackoverflow.com/questions/758906/how-would-i-implement-stackoverflows-hovering-dialogs">How would I implement stackoverflow&rsquo;s hovering dialogs?</a><br>
  <a href="http://stackoverflow.com/questions/1889403/i-want-a-small-box-like-stackoverflow">i want a small box like stackoverflow</a>  </p>
</blockquote>



<p>did you see the box in the top is each page 
i want do one
how</p>
