Disable Link In Status Bar from being displayed e.g. if if hover over a link on almost every site you will see the link will be shown the the status bar at the bottom of the screen, well if you don't want you links to be shown in the status bar use this demo javascript to hide them.
This tooltip script provides additional description about a link on mouse over. The tooltip is positioned directly beneath the link instead of free floating.
Open links in new window otpional checkbox ( like yahoo ) let users to choose to open links in new window with a checkbox beside your menu. Good Script!
Specify arbitrary or entire groups of links on the page open in a new window with this flexible script. An optional checkbox lets the visitor easily toggle between "open in new window" or "current window" instead. This script takes a familiar concept and spruces it up.
This script lets you display content in tight areas on your page, by displaying the content on top of any link used to activate it. The content floats above and overlaps anything beneath it. It's extremely handy for displaying search boxes, additional links etc in a tight area, such as the sidebar column of a page.
Tab view is a purely JavaScript/CSS control that allows switching between several pages without loading them from server. The script is reasonably short and easy to edit.