title: Convert time by jQuery
body: <p>From the youtube player <a href="http://code.google.com/apis/ajax/playground/?exp=youtube#chromeless_player" rel="nofollow">http://code.google.com/apis/ajax/playground/?exp=youtube#chromeless_player</a> I get a time value in seconds, like '243.577'. Let it be a simple string.</p>
  
  <p>How do I convert it to the value like: '04:35'?
  Like 4 minutes and 35 seconds (hope I made right calculations) for this example.</p>
  
  <p>If the value is just 5 seconds, then it should give something like '00:05'. If negative, then '00:00'.</p>