This JavaScript allows a user to read a volume of text, without having to scroll the page and without having to load different pages. This makes for easier maintenance as only one page needs to be updated, yet the content is visible to search engines. Very useful for large amounts of text.

Tired of adding even and odd classes to your tables to distinguish the rows? This JavaScript will do it for you automatically. You can even use it with lists!

This JavaScript will save all of your form fields in a cookie. It includes all text fields, radio button selections, checkbox values, etc. When your visitor returns, all form fields are automatically repopulated with the same value that they entered on their last visit.

Give your users a chance to be spontaneous! Clicking on the button will re-direct them to a JavaScript link chosen at random. You can specify any number of links, and they can open in the same window or a new one. A JavaScript cookie is used to track which links are visited. The JavaScript cookie is erased when the browser is closed.

This collection will help you to set, get, and delete cookies. It's a nice little collection that should prove to be invaluable.

Display the date and time of the users last visit. Easy to implement. (Reload the page to see it work.)

Type whatever you like in the boxes, click outside the box, reload the page, and try to type the details again. This JavaScript uses cookies, so if you have them disabled it will of course not work.

Calculate the percentage of increase/decrease between two units. A simple, effective script.

This compounding interest calculator can show your visitors how much they can save for retirement or other purpose. It also provides your users with the ability of viewing an amortization schedule showing what they will earn during each month. You can easily adjust the style section to make it match your site's color scheme.

Find out the circumference of a circle by entering its radius. Very simple!