One more JavaScript code example to limit user inputs with many options: non-alphanumeric characters with spaces, removes extra spaces (multiple consecutive, leading and trailing) and blank lines. In this live demo, you can only enter upto 20 characters per line or a total of 10 lines.

The advantage of this JavaScript code example is it's made with RegEx, so user input filters will be processed better.

This JavaScript article tutorial will guide you how to build an Awesome jQuery Accordion with CSS3 and HTML5 with full detailed instructions and downloadable source codes.

This is an amazing JavaScript-jQuery accordion menu for displaying a huge list of categories (divided into subjects). This accordion menu jQuery code example displays all navigating menus in a full bright color manner, with one thumbnail picture per each subject of categories.

This JavaScript-jQuery code example is suitable for websites with a huge list of categories (divided into subjects) need to be showed. This accordion menu jQuery code example displays all navigating menus in a full bright color manner, with one thumbnail picture per each subject of categories.

The animations of this JavaScript accordion menu made with support of jQuery framework scrolling appearance. You can easily replace the animations of script by other built-in jQuery functions.

It's not easy to build this jQuery accordion CSS script from the beginning, so I'll guide you how to build it in the next JavaScript article tutorial; now it's time to enjoy this amazing effect in the live demo page.

Inheritance is an important skill in OOP and JavaScript OOP because of reusable feature. In this JavaScript article tutorial, the author shows you 5 must-read JavaScript inheritance concepts. Should master them if you want to become a professional JavaScript OOP coder. Please go to the full post page for details.

This JavaScript code example is a cool reusable script to add a graphical virtual keyboard interface to text fields, password fields, and textareas so they can be filled with mouse only for better security issues.

This JavaScript keyboard input script also supports to enter special characters easily. Besides, this script comes with full keyboards for Arabic, Belgian, Dutch, Dvorak, French, German, Greek, Hebrew, Hungarian, Italian, Lithuanian, Norwegian, Number Pad, Polish Programmers, Portuguese, Russian, Slovenian, Spanish (Spain), Turkish-F, Turkish-QWERTY, UK, US Standard and US International keyboard layouts, dynamically selectable. Add additional layouts is simple. Easily implemented on any Web site.

Try more other JavaScript virtual keyboard interface scripts on jsB@nk:

- Virtual Keyboard
- Virtual Keyboard tool
- Real User Keyboard

Opera is my favorite browser for 5 years, I made Opera as the major browser since 2005; because of its amazing donwload/upload speed. I began to use Opera since version 6; at that point, Opera Software company had declared confidently in our welcome screen: "Opera is the fastest browser on the earth".

At the present of this post, Opera 11 beta is latest version, Opera is being used by over 150 millions users, with hundreds/thousands of Opera widgets, extensions and UserJS to help users better in browsing the Internet. Today in this post, jsB@nk would like to present you a list of top 10 JavaScript applications (UserJS) for Opera.

Here's JavaScript application (UserJS) I'm using: Flash Blocker, NoDelay, Document Viewer and NoAds. Try Opera now to get better experiments with the Internet!

A short web tutorial to provide the overview about SEO and JavaScript in Web development, such as what JavaScript can/can not do; impact of JavaScript on SEO (SEO - Search Engine Optimization) and how to use JavaScript better for SEO.

This JavaScript code example uses a for loop to calculate the sum of JavaScript checkbox values. This JavaScript will display a running total automatically when visitors click to select an item without reloading the current page. Very easy to edit and implement into your existing web forms.

Countdown timer for an event seems to be an indispensable thing in the modern life of human, we can see them in the holidays of Christmas, new year, birthday, etc. Or easily, we can see them daily in alarm clocks - the simplest countdown timers in our life.

The subject of countdown timers are also discussed much by JavaScript countdown timer scripts, JavaScript article tutorial such as:

- jQuery JavaScript Countdown Timer with Bar Display
- More 10 Awesome Countdown Timers to Christmas 2010
- JavaScript Countdown Timer solution in OOP
- Super Neat JavaScript Countdown Timer

Today, I would like to show you another JavaScript article tutorial for building a simple countdown timer in Flash environment with ActionScript. Please go to the full post page for detailed instructions.

If your web pages have a huge list of options to show in the drop down menus (listed into categories), why don't you consider to use this JavaScript dropdown code example? This JavaScript dropdown menu generates multiple choices of drop down list in your web forms. Users click a link of category to change the content of drop down list dynamically. Add as many JavaScript dropdown value and categories as you want. Full detailed documentation of script explained in the script comments.