// image should be in container_mc.blank_mc
 
movie_mask_mc.onMouseMove = function():Void
{
	// absolute position of mask on root level
	var posOnRootLeft:Number = _parent._x + this._x;
	var posOnRootTop:Number = _parent._y + this._y;
	
	// are we inside of mask?
	if (_xmouse >= posOnRootLeft && _xmouse <= this._width - posOnRootLeft && _ymouse >= posOnRootTop && _ymouse <= this._height - posOnRootTop)
	{
		delete container_mc.blank_mc.onEnterFrame;
		
		// position of mouse relative to mask
		var mouseLeft:Number = _xmouse - posOnRootLeft;
		var mouseTop:Number = _ymouse - posOnRootTop;
		
		// 1 percent relatively to width and height of content
		var mw:Number = (container_mc.blank_mc._width - this._width) / 100;
		var mh:Number = (container_mc.blank_mc._height - this._height) / 100;
		
		// position in percent
		var xPerc:Number = (mouseLeft / this._width) * 100;
		var yPerc:Number = (mouseTop / this._height) * 100;
		
		container_mc.blank_mc._x = mw * -xPerc;
		container_mc.blank_mc._y = mh * -yPerc;
	} else {
		container_mc.blank_mc.onEnterFrame = function():Void
		{
			var step:Number = 30;
			
			if (this._x < step && this._x > -step && this._y < step && this._y > -step)
			{
				this._x = 0;
				this._y = 0;
				delete this.onEnterFrame;
			} else {
				if (this._x > step || this._x < -step)
				{
					this._x += this._x > 0 ? -step : step;
					//trace('x: ' + this._x);
				}
				
				if (this._y > step || this._y < -step)
				{
					this._y += this._y > 0 ? -step : step;
					//trace('y: ' + this._y);
				}
			}
		};
	}
};