This is the best little snippet you'll ever see on this site, maybe. . . depends on how many years this site will be around, it's going pretty good right now, but anyway this snippet will make it so when you select the colour(color if you're American which I'm not) out of a drop down menu, it will change all the tables, and if you know how to make a web site then you know all you use are tables so..
All this does is show the person on the site what their IP address is, it's not extremely useful, but it's extremely easy and comes in handy if you're logging each visitor! you can tell them their IP address and then tell them their being logged, that's just a security feature to not get hacked, or at least try to scare them off.