Adding some action to the buttons

Hi!

i got a video online with a preloader. It’s made simply and looks like that:

loader.autoLoad = false;
loader.contentPath = “videoname.swf”;
pBar.source = loader;
loader.load();

pBar.complete = function() {
this._visible = false;
};

now i want to add some buttons to “jump” to specific frames. I add some buttons and add actionscript like that:

on (click) {

this._parent.gotoAndPlay("250");

}

hmmm, but it doesn’t work. how can i specify the name of the video? i think that the problem is, he doesn’t know this._parent

Somebody an idea?

Thx,
Dorian