First off I don't know which topic to add this post to.
Anyways,
I am using an offline blog to create my templates.
I found a really cool script to use for the images,
http://www.webdesignerwall.com/tutorials/html5-grayscale-image-hover/
and I'd like to know how to insert the code into my header.php
and what I'd need to do next for the images to take effect.