Allows visitors to perform arithmetic calculations instantly on the HTML form. [Freeware]

Creates the suggestion box for an input element.

Provides a collection of code generators and snippets to be easily implemented in a website.

JavaScript tools that enable your web page visitors to bookmark your site, send an email about it to a friend, or make it their homepage, or with a single mouse click.

Uses browser's JavaScript to show matches and subgroups, and highlights match in the input string.

Javascript object allowing to select rectangular areas on <DIV> or <IMG> elements. [Free]

Allows to create simple and complex tooltips with the Prototype framework and to emphasize them with Script.aculo.us.

Offers free JavaScript popup code generator and specialist popup development and installation services

The javascript calendar with themes support. [Freeware and Commercial]

Online pop up generator. Free and highly customizable.