A favicon (pronounced fav-eye-con) - short for 'Favorites Icon' - is a multi-resolution image included on nearly all professionally developed sites. Within Internet Explorer the favicon is displayed on the address line and in the favorites menu. Tabbed browsers like Firefox and Opera extend the functionality of favicons. Firefox can even display animated favicons. Each web browser has a unique user interface, and as a result uses the favicon in different ways. The favicon allows a company to further promote a site by displaying a logo, a mascot, etc. Often, the favicon reflects the look and feel of the web site or the organization's logo.

This animated JavaScript tooltip script is very easy to use and lightweight at only 2kb. It is tested working in IE6+, Firefox, Opera and Safari. Jacob Gube of Six Revisions has posted the script and a walk-through of the code and the logic.

Here is a masked input plugin for the jQuery javascript library. It allows a user to more easily enter fixed width input where you would like them to enter the data in a certain format (dates,phone numbers, etc). It has been tested on Internet Explorer 6/7, Firefox 1.5/2, Safari, and Opera.