Всё так же просто

Код:
count=0;
onMouseDown = function () {
count++;
detect = 1;
startX = _xmouse;
startY = _ymouse;
};
onMouseMove = function () {
if (detect == 1) {
this.createEmptyMovieClip("l"+count, count);
var l = this["l"+count];
l.lineStyle(1, 0x006699, 100);
l.moveTo(startX, startY);
l.lineTo(_xmouse, _ymouse);
updateAfterEvent();
}
};
onMouseUp = function () {
detect = 0;
};