This JavaScript tutorial show you how to use some simple methods/techniques for handling JavaScript exceptions in OOP (Object Oriented Programming). The knowledge of this JavaScript article likes as concepts, so it's easy to learn, please go to the full post for details.

This vertical navigation menu is a stylish collapsible menu modelled after the navigational menu found on Slashdot. Session-only cookies are used to store the state of menu (whether it's expanded or not). Cool css navigation menu design!

New updates: you can now add a expand / contract all links on the navigation, to allow your visitors to easily toggle the visibility of all submenus. Furthermore, you can specify all submenus should be contracted by default for first loads (see top of "menu.js").

Collect the JavaScript code examples for creating cool JavaScript clocks is one of jsB@nk's initial criteria; till to this post, jsB@nk has a great collection of 50+ JavaScript analog clocks and JavaScript digital clocks, you can see them at http://www.javascriptbank.com/en+title=clock. Some cool and amazing JavaScript clocks jsB@nk presented recently:

- jsClock: Featured Digital Clock JavaScript
- JavaScript Word Clock: Spell the Time
- CoolClock - Super nice Javascript Analog Clock

Today, I'm pleasure to present you another awesome JavaScript analog clock. This JavaScript code example uses jQuery and Raphaël to build a very amazing JavaScript analog clock with 14 styles, besides this clock allows users to choose the colour of 3 lines: hour, minute and second.

You are needing a beautiful/stylish Javascript countdown timer? And it must be easy to use & edit? Check out this JavaScript code now to see it in action. It meets your requirements, and maybe the best JavaScript countdown timer you ever use.

A very unique and amazing JavaScript code example to create JavaScript loading progress effects on the web pages. With this version, this JavaScript loading progress effect allows us to choose 4 layouts for displaying: bullets and timer, using bullets only, using GIF images and using custom images and text.

Within the JavaScript live demo, I also offer full detailed documentation and instructions to handle all functions, let go to live demo for enjoying now!

Try other JavaScript loading progress scripts on jsB@nk if you like:

- JavaScript Percentage Progress Bar script
- JavaScript Time-based Progress Bar
- JavaScript Percent Progress Bar
- JavaScript Timer Bar

This is a spinning three dimensional cube. Eight dots revolve by itself to create a motional cube.

A variable width/speed marquee HTML, marquee text with realistic multi-color LED digits. No fonts required, and it uses only a single 36Kb image.

See also: LED Display Panel

Programming and coding JavaScript applications, web applications are becoming easier, with the strong support from powerful JavaScript frameworks such as jQuery, MooTools. However, within the scope of this free JavaScript article tutorial, the author only discusses the events in JavaScript, through some definition: JavaScript mouse events, Adding Events - Easy with JavaScript frameworks, Events without the JavaScript Framework, JavaScript button events, jQuery events, Select the Element for Clicking, Events in Firefox/Safari/Opera/Chrome/Internet Explorer and so on, ... Please go to the full post page for more details.

Check more JavaScript events article tutorials for better coding tips:
- How to Build Custom events in JavaScript
- Top 10 JavaScript Frameworks by Google, Yahoo, Bing

PHP is one of the most popular programming languages for website development. Over 70% of dynamic websites are built in it nowadays, and since it made its appearance in 1994, it has become one of the most widespread web-development tools. With the new upgrade to PHP 7, PHP will have even more benefits to using it in your next web-development project.

Use this JavaScript instead of frames. When a visitor clicks on a specific link, the content of that link is inserted into the page without a refresh. When a page doesn't exist, a user-friendly error message is given.