expanding menus

I would like to make an expanding menu on my list page. I have 50 links to 1 page web sites using a zoomifyer program and I want to have people be able to view them all in an iframe with out jumping from page to page

here is the rough idea

plans list

any way to do this using a data base or are these coded individually? <img src='https://asprunner.com/forums/file.php?topicimage=1&fieldname=question&id=14132&image=1&table=forumtopics' class='bbc_emoticon' alt=':rolleyes:' />
Hello??? anyone out there??