First, fix it in Netscape. Use the javascript console to help out, type javascript: in the URL to open it. Any decent web master can make his creations work in all browsers, and generally if it works in IE and NS 4, it works on all the other ones as well.

Secondly, learn how to make it so the popup window does not have to be closed. Once you do these two things, the site will pretty much be complete, and you can move on to something else to furthur challenge your web skills and allow you to learn new things.

And if you run out of ideas for web pages, try replacing a program or two here with your own creation. I dumped my spreadsheet gas tracker for my car in favor of a self made PHP one. I also have many other similar things just running away on my server, all because I needed something to challenge me to learn more. I am finally moving away from web creation, so my skills will only be used for the things that do need to be in web form, like riocar.org.