Have not looked at the FLA but you probably had the following
in mind:
if (sliding.ratio >= 0 && sliding.ratio < 20)
{
new Tween(mc01, "_alpha", Regular.easeOut, 0, 100, 1, true);
mc02._alpha = 0;
mc03._alpha = 0;
mc04._alpha = 0;
mc05._alpha = 0;
}
else if (sliding.ratio >= 20 && sliding.ratio <
40)
{
new Tween(mc01, "_alpha", Regular.easeOut, 100, 0, 1, true);
new Tween(mc02, "_alpha", Regular.easeOut, 0, 100, 1, true);
mc03._alpha = 0;
mc04._alpha = 0;
mc05._alpha = 0;
}
else if (sliding.ratio >= 40 && sliding.ratio <
60)
{
mc01._alpha = 0;
new Tween(mc02, "_alpha", Regular.easeOut, 100, 0, 1, true);
new Tween(mc03, "_alpha", Regular.easeOut, 0, 100, 1, true);
mc04._alpha = 0;
mc05._alpha = 0;
}
else if (sliding.ratio >= 60 && sliding.ratio <
80)
{
mc01._alpha = 0;
mc02._alpha = 0;
new Tween(mc03, "_alpha", Regular.easeOut, 100, 0, 1, true);
new Tween(mc04, "_alpha", Regular.easeOut, 0, 100, 1, true);
mc05._alpha = 0;
}
else
{
mc01._alpha = 0;
mc02._alpha = 0;
mc03._alpha = 0;
new Tween(mc04, "_alpha", Regular.easeOut, 100, 0, 1, true);
new Tween(mc05, "_alpha", Regular.easeOut, 0, 100, 1, true);
}