ajax improvements

we have a beta-site [login to view URL] now we need an other developer. following tasks are to do: – change the left navigation to a ajax solusion (with yui-lib). the navigation load's only the first hirarchy. only if you open a sub-chapter it loads the data of the sub-navigation. during the loading process it shows a little icon instead of the triangel. the current position in the navigation is always marked (like in the beta) - change the up/down function in the content-list (ex.: [login to view URL]) also to load dinamicly only the list new (now the whole page). attention! it's made with active_scaffold and it must be realised with it. if the order is changed with up/down, then the left navigation also has to reorder. please check first the source then bid: [login to view URL]