<code> public function sort(Index:String = y, Order:int):void</code><p></p><p></p><p>
		 Call this function to sort the group according to a particular value and order.
		 For example, to sort game objects for Zelda-style overlaps you might call
		 <code>myGroup.sort("y",ASCENDING)</code> at the bottom of your
		 <code>FlxState.update()</code> override.  To sort all existing objects after
		 a big explosion or bomb attack, you might call <code>myGroup.sort("exists",DESCENDING)</code>.
		 
		 </p><p><span cl