Mine

_root.moveTo(_xmouse, _ymouse);
_root.onMouseUp = function() {
	_root.onMouseMove = null;
};
_root.onMouseDown = function() {
	_root.moveTo(_xmouse, _ymouse);
	_root.onMouseMove = function() {
		_root.lineStyle(1, 0x000000, 100);
		_root.lineTo(_xmouse, _ymouse);
	};
};