[udaaff]

Не тестировал.

// сверху вниз
var y0 = 0;
for (var i = 0; i<docs.firstChild.childNodes.length; i++) {
	var my_mc = attachMovie("mc_attach", "q"+i, i);
	my_mc._y = y0;
	y0 += my_mc._height;
}
// снизу вверх
var y0 = Stage.height;
for (var i = 0; i<docs.firstChild.childNodes.length; i++) {
	var my_mc = attachMovie("mc_attach", "q"+i, i);
	my_mc._y = y0-my_mc._height;
	y0 -= my_mc._height;
}