Bye Gallery - hi to zenphoto
Well just had to install Highslide js. It is lovely to use and better than any slideshow.
There isn’t a plug-in for gallery2. But the technique is to install Lightbox js - which takes a bit of doing. Then uninstall it and install Highslide using the same technique.
It became obvious that although Gallery2 works out of the box - playing about with this leviathan is long-winded in the extreme. No it has to go.
Zenphoto installs with about 3Mb instead of 50Mb. Although documentation is lacking its easy enough to get along with. There is a plug-in for Highslide or rather a theme which uses it. That’s useful but it is an old version of Highslide. Managed to update the theme and it works a treat - and even degrades gracefully in old browsers (and with javascript turned off).
Changed my mind about Javascript - you couldn’t do anything this spectacular without it really.