This pop-up menu is generated by Lefteris's Pop-up program, a DHTML application that allows you to simply fill in the blanks, and generates automatically the appropriate menu for you to paste onto your page. You'll need IE 4+ to use this program, although the generated menu is compatible with BOTH IE and NS. To directly download the program, click here. We suggest you study the source code of the generated script to learn about the advanced techniques used to put together the pop up. It's quite amazing.