How To Do This Image Zooming Trick In A Browser?

I would like to do the following trick in a browser: Create three image files of different size (small, medium, large) from one picture. First, display the small image in a brows

Solution 1:

A quick google search turns up:

http://www.intenseblog.com/design/8-amazing-javascript-image-zoom-scripts.html

and:

http://www.hotscripts.com/blog/javascript-zoom-scripts/

Several of these libraries appear to do what you want.

Solution 2:

Would this work for you?

http://www.netzgesta.de/shiftzoom/

This might be for image data that is much larger than you are interested in.