how would you make a menu like this (http://www.hbc.com/HBCREWARDS/home.asp?NAV=HBCRewards&langid=EN&catid=&imgthumb=False&SUBNAV=&NAVSEL=&MSCSProfile=61E4CECF7275066FD87B9817DA5865CBF082FB 6B651951B52FA44C6E78E3F538DD99EA5F3DD2DE2320A82A84 DF856C8018C62A29E2D1136F1CA1A1A685FDB1F23F9814F9B8 C6F882939AC2B3C3EEF8A4CAA8A509D9D64946AC24CFCF8C0C 287C07896A7800FC23AD51691B302CE3ABD77B50F37AA572F3 F3FBA52646B9FBC9E9F0DE31D7CC2DD204) ?

you see on the left, if u click the titles a sub menu pulls down...how do u do that?

http://www.dynamicdrive.com/dynamicindex1/navigate1.htm