The code must be straightforward so I can insert ads from a database (I'll sort this myself).
If the code is commented with a config box so the height / width / speed etc are all easy to control then that would be good.
The script will display any number of ads - ideally extensible using html so I can add either, text, links or graphics.
There nust be no whitespace at the bottom of the scroller.
For example if there are 7 ads then ad 1 must follow ad 7 in rotation straight away rather than waiting for all the ads to finish scrolling.