% Help

Hello Everyone, Could someone please explain the whole % thing? I sort of understand it, but not quite. My goal is to have a table, and have every row alternate between 4 colors. I can alternate sort of alternate between 3, but not quite. I have tried lots of different combinations, but I can't figure it out. Thank you very much! Maybe there should be a better link to it in the manual. The only one I could find was at http://www.php.net/manual/en/ref.math.php, but it is far from clear (to me at least....). Jeff Lacy P.S. Please email me directly, and respond to the list because I am not really subscribed to it. When I look at the newsgroup, it crashes Outlook Express, and the list is VERY high volume (for me). Thanks again.