I'm working on this site

http://www.mediamotionintl.com/index2.html.
If you go to the client page, there is a slider that moves in
relation to the mouse _x. The problem occurs when you open another
window in your browser. Of course it doesn't happen every time, but
what does on occasion happen is the slider completely vanishes. I'm
guessing that the mouse_x is off the chart on another window and it
screws it up.

Does anyone have any advice on how to solve this?

Here is the code I used:

slideSpeed = 0.0035;

onEnterFrame = function(){

//The code below causes the imgboxes to react to mouse
movement//

currentMousex = Math.floor(this._xmouse);

pic1._x = Math.floor(pic1._x-(currentMousex*slideSpeed));

pic2._x = Math.floor(pic2._x-(currentMousex*slideSpeed));

pic3._x = Math.floor(pic3._x-(currentMousex*slideSpeed));

pic4._x = Math.floor(pic4._x-(currentMousex*slideSpeed));

pic5._x = Math.floor(pic5._x-(currentMousex*slideSpeed));

pic6._x = Math.floor(pic6._x-(currentMousex*slideSpeed));

pic7._x = Math.floor(pic7._x-(currentMousex*slideSpeed));

pic8._x = Math.floor(pic8._x-(currentMousex*slideSpeed));

pic9._x = Math.floor(pic9._x-(currentMousex*slideSpeed));

pic10._x = Math.floor(pic10._x-(currentMousex*slideSpeed));

pic11._x = Math.floor(pic11._x-(currentMousex*slideSpeed));

pic12._x = Math.floor(pic12._x-(currentMousex*slideSpeed));

//The code below causes the imgboxes to repeat//

if(pic1._x <= -591){pic1._x += 1182;}

else if(pic2._x <= -591){pic2._x += 1182;}

else if(pic3._x <= -591){pic3._x += 1182;}

else if(pic4._x <= -591){pic4._x += 1182;}

else if(pic5._x <= -591){pic5._x += 1182;}

else if(pic6._x <= -591){pic6._x += 1182;}

else if(pic7._x <= -591){pic7._x += 1182;}

else if(pic8._x <= -591){pic8._x += 1182;}

else if(pic9._x <= -591){pic9._x += 1182;}

else if(pic10._x <= -591){pic10._x += 1182;}

else if(pic11._x <= -591){pic11._x += 1182;}

else if(pic12._x <= -591){pic12._x += 1182;}

else{}

if(pic1._x >= 591){pic1._x -= 1182;}

else if(pic2._x >= 591){pic2._x -= 1182;}

else if(pic3._x >= 591){pic3._x -= 1182;}

else if(pic4._x >= 591){pic4._x -= 1182;}

else if(pic5._x >= 591){pic5._x -= 1182;}

else if(pic6._x >= 591){pic6._x -= 1182;}

else if(pic7._x >= 591){pic7._x -= 1182;}

else if(pic8._x >= 591){pic8._x -= 1182;}

else if(pic9._x >= 591){pic9._x -= 1182;}

else if(pic10._x >= 591){pic10._x -= 1182;}

else if(pic11._x >= 591){pic11._x -= 1182;}

else if(pic12._x >= 591){pic12._x -= 1182;}

else{}

}

Thanks,

Adam