pproductions' messages

i have an problem. i’m making a game with many squares.. lined up, so they form a grid. i’m having a object that i can drag to all squares, and that centers. and if there’s already a object on the square,then i just say= this.removemovieclip. but it only works with the original ( the first that was already on the stage when started this is my code= (minus the other 23 pieces of square code)
class stukje extends MovieClip
{
function onLoad()
{
_root.all.stukjes.push(this);
this.onPress = function()
{
startDrag(this)
}
this.onRelease = function()
{

this.stopDrag()
if (this.hitTest(_root.baxx))
{
_x = 435
_y = 35

if (this.hitTest(_root.boxx2))
{

this._x = root.boxx2._x;
this.y = root.boxx2.y;
var water = _root.attachMovie(“waterwiel”,“waterwiel” + root.getNextHighestDepth(),_root.getNextHighestDepth());
water.x = root.place2._x;
water.y = root.place2.y;

for(var i in _root.all.stukjes)
{
if(this.hitTest( _root.all.stukjes) )
{
this.removeMovieClip();
}
}
}