joomla 1.5 javascript popup menu integration

i have a joomla 1.5 site with a template that's working fine so far. but now i need a popup/dhtml menu on that site. i have already integrated a script for that, but it doesn't work and look as needed - see links below. it works in ie8, but not in firefox or safari. <[login to view URL]> i'd either need the current script and css corrected or have some other script integrated: * main menu items should look and be positioned as shown here: <[login to view URL]> * there should be a separator | between the main menu items * the subitems should popup or slide down below each main menu item - currently there are only subitems for "kulinarium" * it needs to be working with all important browsers (ie 6, 7, 8, firefox, safari) it's quite urgent - i'd need to have this done within about 12 to 16 hours if possible, and i don't have the time to do this by myself. ftp access is not available to the server - so you'd need to download the html and css files and test locally and send me the new files for integration into the joomla template ... please let me know if you need additional information.