Cool Menus How To
Scott Andrew provides us some DHTML Menu love - using a little DOM action and <ul>'s. The beauty of these is that they will work just fine in older browsers - just like a regular list.
Dave Lindquist has taken this same basic concept one step further with these awesome DHTML menus. Both the dropdown and expandable tree variations are simple lists built with 100% valid XHTML. CSS and DOM scripting are added to extend the functionality. Dave even goes so far as to use ACCESSKEY attributes to make parts of the menu accessible via keyboard shortcuts. The result is a more widely accessible menu that doesn't sacrifice the whiz-bang functionality of DHTML. Try turning off the CSS rules (with a handy "Toggle CSS" bookmarklet) while viewing the menu demos and you'll see a plain, fully-accessible list. Better yet, run it through Delorie's LynxViewer to get an idea of how a non-graphical browser would handle it. Sweet.