type @, show a name list like facebook status box
<p>in facebook status box, if you type '@', then a list of friends' names appear. I am trying to implement such a status box.</p>

<p>But the problems are:</p>

<p>On typing '@', where should the 'div's location be and how  to show the list? I just can't make anything out of it.</p>

<p>I went through <a href="http://stackoverflow.com/questions/7497824/how-to-highlight-friends-name-in-facebook-status-update-box-textarea">this</a> question of SOF, but that actually does not discuss that.</p>

<p>Anybody there to shed light on it as much as possible?</p>

<p>My choice is jquery.</p>
