Tween problem

Hi there,
I have a problem with the tweens in my website…
All them work fine, but i want them start only when the last tween stop;

EXAMPLE:
a->b->c->d

tween “b” only starts when tween “a” STOPS, and so one.

I have read in adobe, i have an idea but i don’t know how to make it.
I think if i make a function which determine when tween stop that can help…

Please help me if you know… :kir: