Using mc class in hit test

Hey everyone,
In my platform game my character shoots bullets from a gun, these bullets are loaded from a ‘bullet’ class. A new instance of this class has the variable name ‘bulletVar’. I can adjust the bullets x and y position like so:

 bulletVar.x =  253;

But I also want to use it in a hitTestObject, I thought that the following code would work, but it does not!

stage.addEventListener(Event.ENTER_FRAME, hitEnemy);
function hitEnemy(event:Event):void
{
if (bulletVar.hitTestObject(enemy_mc))
{
enemy_mc.gotoAndStop(“dead”);
stage.removeEventListener(Event.ENTER_FRAME, hitEnemy);
}
}
Also - how would I then remove that hitting bullet from the movie?

Here’s my code to call a bullet:

var bulletVar:bullet = new bullet();
this.addChild(bulletVar);

Thanks a lot,

Ryan