1. 
   Simple unlimited levels vertical drop down navigation menu jquery plugin
2. 
   Sweet Pages: A jQuery Pagination Solution
3. 
   Using mouseover to switch tabs
4. 
   Reorder and filter items with a nice shuffling animation(Quicksand)
5. 
   Roundabout(Scroller)

accordion accordion menu animation navigation animation navigation menu carousel checkbox inputs css3 css3 menu css3 navigation date picker dialog drag drop drop down menu drop down navigation menu elastic navigation form form validation gallery glide navigation horizontal navigation menu hover effect image gallery image hover image lightbox image scroller image slideshow multi-level navigation menus rating select dependent select list slide image slider menu stylish form table tabs text effect text scroller tooltips tree menu vertical navigation menu