A simple back button in JavaScript.

function to validate mac address

Remove control character from a string

Find min and max of an array

This code is used in an Educational Portal product but can be tweaked to fit your need.

This code adds a small icon next to the title of a 'portlet' that resides on the page. By clicking the portlet title, the portlet usually maximizes within the constraint of the portal template - but the extra icon allows for the portlet to be opened in it's own window.

This simulates an MDI interface.
(REQUIRES PopItUp snippet)

This code illustrates using ruby REXML package. It converts J2EE web application deployment descriptor web.xml into Freemind mindmap document.

Gets a regular expression that'll search for any regexp pattern specified in the parameters.

This is a swear filter script I wrote for my xanga blog. I don't know if it has any application anywhere else. This will replace the swear words listed in the array with the character defined in blank_char. This isn't perfect but it works pretty well.

I like to have these two methods in my toolbelt, even though it's syntactic sugar, I think it aids clarity.

An easy way to hide and show div's using Javascript and CSS.

Basically just a slight variation on this script by Real Gagnon.