Javascript Image Gallery

I need a Javascript Image Gallery that works like the one you can find here: [login to view URL], I like especially the possibility to navigate forward and back between through thumbnails. I want you to add two features to this Javascript: - show "back" and "next" links only if there are really next or previous thumbnails, "back" and "next" links for the large images are not necessary. - the thumbnails must remain visible when a large image is displayed and also the "back" and "next" links shall remain visible to keep the possibility to navigate through the thumbnails also when a large image is displayed. - like all other elements the large image must be placed into a or some other HTML element so that it can be positioned anywhere with CSS. - not a necessary but a nice feature: can there be some fading effect by navigating through the thumbnails? You can either use the script from [login to view URL] or write a new one, whatever will be less time consuming. If you prefer the first method don't alter the existing script too much, if possible put the functions that you created into a new file and link the existing gallery script (of copyright reasons, if something is not clear enough we can discuss about it). The script must work on IE (starting from version 5.0, Windows and Mac platform), Firefox, Opera, Safari and Konquerer. Looking forward to see your bids, there might be one more Javscript job for the winning bidder.