Random Web Design Tip
Use Appropriate “Alt” Text for Images That Are Links
If you use an image as a link, the value of your "alt" attribute should indicate the function of the link, and not simply describe the visual look of the image.
For example, if the image is a Goolge logo that links to Google, use:
<img alt="Go to Google" src="googlelogo.gif" />
<img alt="Google logo" src="googlelogo.gif" />