Mouse position plays movieclip frame

[rubic07]

Does anyone know the actionscript to play a movie clip's frame when the mouse is in a certain position on the stage? Basically, play frame 2 of this movie clip when the mouse goes to the far right side of the stage, otherwise play frame 1. Can't seem to get the script right...any ideas?

[Ex-Ess]

this.createEmptyMovieClip("mouseCheck",100);
this.mouseCheck.onEnterFrame = function(){
	//this bit sets up your frame boundaries [startPointFromLeft,endPoint,FrameToGoTo (can be a number or frame name)]
	frames = [[183,366,"one"],[0,182,"two"],[367,550,"three"]];
	
	//gets the x position of the mouse
	xPos = _root._xmouse;
	
	//loops round the array of boundaries to see where the mouse is and goes to correct frame
	for(i=0;i<frames.length;i++){
		if(xPos >= frames[i][0] && xPos <= frames[i][1]){
			_root.gotoAndPlay(frames[i][2]);
		}
	}
}