Help:Navigational image

In projects that allow embedding images in external link style (in which case you see three images in the lefthand side of the table below), the image can also be external, and the target can be any URL; there are the following possibilities:

Thumbnail
One application is linking a small version of an image to a large one. Example where both are external:

http://pennine.demon.co.uk/photos/seakayak/small/Lunga-P7-100-3086.jpg

gives

http://pennine.demon.co.uk/photos/seakayak/small/Lunga-P7-100-3086.jpg

The alternate text is the name of the image, after the last slash in the URL. If you have control over the image, give it a meaningful name; you could even include a text like "click to enlarge" in the name.