How can I display an image by percent rather than a standard point value?

Say the image is x500 by y800 and I want to display it within a 130x80 box at its proper aspect ratio, how would I go about that?

I used to use:

Code:
loadMovie("directory/directory/image.jpg", "emptyclip1");
In a blank frame, then:

Code:
onClipEvent (data) {
	this._width = 130;
	this._height = 80;
}
On the empty mc.

But that's not gona work the imaghe distorts to fill the box.

Any advice on how to load a large image and constrain it into that small space with its proper aspect ratio intact would be greatly apreciated!