++ for you MeowChow! I did not know trick from your link!
Now I recall: It is because every item is loaded from HTTP server to browser separately, by separate request, and only on client side rendered together to make a page. So you can create CGI script which will look like one .gif file for browser. I *read* about it, but knowledge was not digested. Now it is!

So much more to learn!

pmas

To make errors is human. But to make million errors per second, you need a computer.