Matt's DHTML ad script displays an 'inexcusable' box in the middle of the page, broadcasting ads of your choice inside. The box automatically disappears after x seconds, with its display frequency configurable (ie: show ad box only 1 of out 5 times the page is loaded). This is one method of serving ads that may just be effective, since it contains qualities of a TV/radio commercial.

This is a different script to create a calculator code with memorial function.

JavaScript can help you figure the circumference of a circle when you enter the radius.

Use this JavaScript to calculate your BMI (Body Mass Index). Measurements are computed using the metric system. A perfect addition for a health Web site.

Automatically removes specified characters from input box. Good for fields that require only text/number inputs. Easily modified to accept only text or only numerals.

Display a few words in a form field and when focus is given to the field, the words will disappear. Great for providing instructions in a small space.

Memorize the picture, shuffle it and put it back together again.

Smack the gophers on the head as they come out of their holes. Speed and level will increase on every 5th gopher. Game ends when you miss 20 gophers. Use the mouse cursor, not the hammer, to target the gophers(the hammer is just for show). Press any keyboard key to pause the game. Press 'Ok' to start the game.

This JavaScript makes JavaScript link change color when user move mouse over it. In addition, you just need put this JavaScript code into your web page, the effect automatically checks objects which are JavaScript link before affected. Very nice.

The code creates a context JavaScript menu when visitors right-click anywhere on the web page.