Photo slide and tabs stopped working

Hi,
After i installed JWallpapers 2.0.1, the homepage slide show and also the tabs stopped working. i uninstalled the components and still the same error. also the menu stopped working properly as it doesn't show the sub-menu any more.

here is the link of the website: http://www.londonhotparties.com/

i would appreciate if you could help me to solve this problem.