Superfish
http://users.tpg.com.au/j_birch/plugins/superfish/
Superfish
http://users.tpg.com.au/j_birch/plugins/superfish/
jTip
http://codylindley.com/Javascript/264/jtip-a-jquery-tool-tip
http://www.codylindley.com/blogstuff/js/jtip/
Mark-It-Up
http://markitup.jaysalvat.com/home/
markItUp! is a JavaScript plugin built on the jQuery library. It allows you to turn any textarea into a markup editor. Html, Textile, Wiki Syntax, Markdown, BBcode or even your own Markup system can be easily implemented.
ThickBox
http://jquery.com/demo/thickbox/
ThickBox is a webpage UI dialog widget written in JavaScript on top of the jQuery library. Its function is to show a single image, multiple images, inline content, iframed content, or content served through AJAX in a hybrid modal.
Corner for jQuery
http://methvin.com/jquery/jq-corner.html
Corner adorners are all the rage in web design these days. Designers say that plain old right-angle corners are so Web 1.0 now. However, some of the techniques to take the edge off corners use extra markup that is only there to support the decoration, which violates the separation of content and presentation. Now that's really Web 1.0 so we don't want to go there. Others use single-purpose rounded corner images or bulky Javascript code; that seems like a high price to pay for beauty.
Lightbox for jQuery
http://code.google.com/p/jquery-lightbox/