Hiya everyone. I am looking for a way to create a fade onto an image.

Example: I have a square image.. and I want a "fade" to start from the left side of the image, and then ends somewhere inside the image going from solid white to transparent.

Please see the below URL for an example of what I'm talking about.

http://www.humanwerks.com/werks/fincaalicura/sub2.jpg

Look at the top right of this image at the grapes, and notice how they start out on the left side white, and slowly fades to transparent to allow the grapes to show through.

Can someone tell me step-by-step how to create this effect?

Thanks a million guys!