Need to remove a sprite object when another sprite object hits it

Question

Hello All,
I have a brick class where I have created a rectangle using flash.display.graphics.
I am using this brick class to create a grid of 10 X 10 in another class called grid using new brick() in a for loop.
I have another class called ball where I have created a circle with flash.display.graphics.
The problem is that I want to remove / destroy individual bricks when the ball hits the bricks on Event.ENTER_FRAME which is not happening.
the error I get is shown only for the last brick that is created in a for loop.
ArgumentError: Error #2025: The supplied DisplayObject must be a child of the caller.
at flash.display:isplayObjectContainer/removeChild()
at grid/ball_movement()// my function in enter frame event
The code I wrote in ENTER_FRAME is
if (Ball.hitTestObject(bricks)) {
removeChild(bricks);
where
var Ball:ball=new ball()
var bricks:brick=new brick()
any help is highly appreciated.
thanks
iceheros

Answer 1

Thanks a lot Kglad for your help. But how can I check for the entire grid, this works but how to detect the hit for all the bricks in my 10X10 grid? It is currently removing only the last brick (element) =100 (10X10) when I form the grid.
Thanks Again
iceheros