Imagine you have hundreds om images in a folder that are all in hi-resolution and you want these images to be saved for the Internet. In Photoshop you use the "safe for web" feature that enables you to get the smallest size of an image in combination with the highest image quality. To process multiple images you need to execute a script. The source for this script was available in the Adobe Exchange forum, but somehow Adobe decided to remove this important post (or it is very difficult to find). So that is why you can download this handy 'save for web' script here:

saveforweb.jsx (2,49 kb)

You can execute the script in Photoshop by selecting: File - Scripts - Browse: Enjoy