Mouse position and hitTest

1

Hi, Im new to AS3 and am trying really hard to convert my AS2 code to AS3. I keep making break throughs only to get stuck again. The current problem is trying to detect a hitTest with the cursor. I use this code very successfully in AS2, when I cannot use an rollover for whatever reason.

This is my AS2 code:

onEnterFrame = function()
{
   if(my_mc.hitTest(_root._xmouse, _root._ymouse))
   {
      race("the mouse is positioned over my_mc") 
   }
}

This is me trying unsuccessfully to convert it to AS3:

stage.addEventListener(Event.ENTER_FRAME, intro); 
function intro(e:Event):void
{
     my_mc.hitTest(mouseX, mouseY)
     {
        trace("the mouse is positioned over my_mc")
     }
}

Anyone know where Im going wrong?