Help with setInterval!

I got this MC I load. How could I put a setInterval function in front of it?

onClipEvent (load) {
    this._x = 100;
    this._y = 400;
onClipEvent (enterFrame) {
    if (this._y>300) {
        this._y -= 5;

And what if I wanted to do this with several MC’s in the same movie?

in front of what? … for what?


I want to make a movie where a couple of MC’s are loaded into.
I want those MC’s to load on different…intervals?
So they appear one after the other.

Looking for a way to take my Flash designs to a higher level…