Ah right, now I get it !

Jeez, how obvious is it once it is explained ...

Thanks Donuel, Kat and SRS, all I have to do is brush up on my somewhat rusty HTML and away we go.

One final question , if anybody can answer, when you try to right- click on the pictures in my above link, it comes up with a copyright message instead of displaying the source code.

How do they do that ?? (just idle curiosity on my part.)