This shows how the computed style of each node differs from the computed style of its parent. The root element, which has no parent, is instead compared against the root of a blank HTML document.

* create a new bookmark called "compute styles" in your firefox toolbar. Place the snippet code in the location field of your "compute styles". click the compute styles bookmark, then click an element on the page with the crosshairs.

A simple demo of the google maps API

Given a PHP array (even a deep nested array), returns a string representation of that array as JavaScript array. Useful when using PHP to output JavaScript.

Similar to Perl's CGI::escapeHTML(), though (because we can!) this adds it as a method to all String objects.

Basically, you can dynamically ask the webpage to look at a current object's attributes/values or even change the object's attributes/values. As such, running this script on any browser of your choice should show what attributes your particular browser will allow for an object reference you typed in.

Allows you to hide all elements on an HTML page by their tag name. Extremely handy in getting around the "Windowless Elements" problem in IE, which is a bug that puts certain elements, most commonly select boxes, on top of any other element, no matter what. As you can imagine, this causes real problems with DHTML drop-down menus and such like. This is the simplest and quickest fix I've come up with, I simply set this function to run alongside the drop-down and all of the select tags vanish before a menu drops, then I run the show function when the menu retracts.

A simple Tooltip for you web pages with minimal code.
Images , Text and HTML code can be shown inside the tootip

It works with Array types. The example is a simple list of numbers, but the array could contain anything; lists of strings, functions, DOM nodes, whatever. Unfortunately, a lot of things that seem like arrays in the DOM aren't really, so you can't shuffle the images on a page with just document.images.shuffle() all by itself.

Delete a Cookie

Trim , Left trim (ltrim) and Right Trim (rtrim) in javascript