JavaScript: Most Popular Articles

Using window.onload
Using window.onload Join the Discussion Questions? Comments? Some scripts require that you run something

Free JavaScript Download
You don't have to pay for JavaScript and you don't have to write it yourself either unless you want to.

document.write
document.write Join the Discussion Questions? Comments? A lot of people, particularly those first starting

Modal Windows
Modal Windows Join the Discussion Questions? Comments? Related Resources Modal Dialog Box Creating a

Javascript and XHTML
Javascript and XHTML Join the Discussion Questions? Comments? With HTML pages on the web you can just

Modal Dialog Box
Modal Dialog Box Part 1 : Introduction and Sample Page More of this Feature Obtain the Script Use the

Radio Button Validation
Radio Button Validation 1. Introduction Join the Discussion Questions? Comments? More of this Feature

Validate Radio Buttons
Radio Button Validation 4. Validation Join the Discussion Questions? Comments? More of this Feature Introduction

Creating a Combo Box
Site Navigation 7. Combo Box Join the Discussion Questions? Comments? More of this Feature Introduction

Radio Button Labels
Radio Button Validation 3. Button Labels Join the Discussion Questions? Comments? More of this Feature

Final Javascript Quiz
Learn Javascript Final Javascript Quiz Tutorials Object Oriented Javascript Defining Classes Putting

Print Button
Print Button Join the Discussion Questions? Comments? You can easily add a print button or link to your

Using Modal Dialog Box Javascript
Modal Dialog Box Part 3 : Use the Script More of this Feature Introduction and Sample Obtain the Script

The Javascript Tooltip
This is a Javascript Tooltip Please visit my site Extended Tooltip 1. Introduction and Sample Join the

The CASE Statement
Learn Javascript The CASE Statement Join the Discussion Questions? Comments? More of this Tutorial The

Drop Down Menu
Drop Down Menu 1. Introduction and Sample Join the Discussion Questions? Comments? More of this Feature

Javascript Format and Colour
Javascript Formatter Related Articles Javascript Compressor Does your Javascript code look a mess? Are

Defining Radio Buttons
Radio Button Validation 2. Defining the Buttons Join the Discussion Questions? Comments? More of this

Passing Parameters Via Query Strings
Passing Parameters Via Query Strings 1. Write Querystrings Join the Discussion Questions? Comments? More

setTimeout or setInterval
setTimeout or setInterval Join the Discussion Questions? Comments? Glossary setTimeout setInterval The

getElementsByClassName
The Javascript DOM 8. getElementsByClassName Join the Discussion Questions? Comments? More of this Feature

Passing Parameters
Learn Javascript Passing Parameters Join the Discussion Questions? Comments? More of this Tutorial Functions

Modal Dialog Box Javascript
Modal Dialog Box Part 2 : Obtain the Script More of this Feature Introduction and Sample Use the Script

Target Window or Frame
Target Window or Frame Join the Discussion Questions? Comments? With an ordinary HTML link using the

Hex to Decimal and Decimal to Hex
Hex to Decimal and Decimal to Hex Join the Discussion Questions? Comments? A number of computer related

Mouse Cursor Position
Mouse Cursor Position Join the Discussion Questions? Comments? Until recently there was no standard way

No Right Click Script
No Right Click Script Join the Discussion Questions? Comments? Related Resources View Source Bookmarklet

Function to Read Parameters Passed Via Query Strings
Passing Parameters Via Query Strings 2. The Read Function Join the Discussion Questions? Comments? More

Page Events
Learn Javascript Page Events Join the Discussion Questions? Comments? More of this Tutorial Form Events

Regular Expressions
Regular Expressions Introduction Join the Discussion Questions? Comments? Related Articles Email Validation

Bulletin Board / Forum Code Converter
Bulletin Board / Forum Code Converter Join the Discussion Questions? Comments? At some stage you will

getElementsByTagName
The Javascript DOM 7. getElementsByTagName Join the Discussion Questions? Comments? More of this Feature

Common Javascript Errors
Commonly made Javascript errors and how to find them

Adding Validation to the Submit Button
Validate on Submit 2. Submit Button Join the Discussion Questions? Comments? More of this Feature Why

Calendar Popup Script
Calendar Popups 1. The Calendar Script Join the Discussion Questions? Comments? More of this Feature

Analog Clock Script
Analog Clock 1. Introduction Join the Discussion Questions? Comments? More of this Feature The Head Script

What is Javascript?
Answers to a few introductory questions on what Javascript is and how to use it.

Hello World
Learn JavaScript Hello World Join the Discussion Questions? Comments? More of this Tutorial Getting Started

The IF Statement
Learn Javascript The IF Statement Join the Discussion Questions? Comments? More of this Tutorial The

Back Button
Back Button or Link Join the Discussion Questions? Comments? So you would like to put a link on your

The Tooltip Script
Extended Tooltip 2. The Script Join the Discussion Questions? Comments? More of this Feature Introduction

Obtaining Your Visitor's IP Address
Obtaining Your Visitor's IP Address Join the Discussion Questions? Comments? JavaScript itself has no

Five Most Common Coding Errors
The five worst pieces of code that people use with Javascript and which you ought to avoid.

Disable Form Fields
Disable Form Fields Join the Discussion Questions? Comments? Sometimes when you have a form for your

Onblur
JavaScript Glossary definition for: Onblur

Event Listeners
The Javascript DOM 19. Event Listeners Join the Discussion Questions? Comments? More of this Feature

Falling Snow Script
Falling Snow 2. Obtain the Script Join the Discussion Questions? Comments? More of this Feature Introduction

innerHTML
The Javascript DOM 6. innerHTML Join the Discussion Questions? Comments? More of this Feature Introduction

Collapsible Menu HTML
Collapsible Menu 4. Adding Menus Join the Discussion Questions? Comments? More of this Feature Introduction

Defining Classes
Learn Javascript Defining Classes Join the Discussion Questions? Comments? More of this Tutorial Object

Date Validation
Validate dates in forms with this Javascript routine for validating dates.

Basic Popup Windows
Popup Windows 1. Basic Popup Windows Join the Discussion Questions? Comments? With HTML you can open

Quiz Script Generator
Multiple Choice Quiz Maker 1. Question/Answer Script Join the Discussion Questions? Comments? More of

Reserved Words
Reserved Words The following are Reserved Words in Javascript. This list of reserved words includes several

Equals, Equals Equals, or Equals Equals Equals
Using one, two or three equals signs in Javascript depending on what you need to achieve

Alert and Confirm
Learn Javascript Alert and Confirm Join the Discussion Questions? Comments? More of this Tutorial Comments

getElementById
The Javascript DOM 3. getElementById Join the Discussion Questions? Comments? More of this Feature Introduction

Drop Down List Validation
Drop Down List Validation Join the Discussion Questions? Comments? Validation of dropdown lists is fairly

Event Calendar Javascript
Event Calendar 2. Get the Javascript Join the Discussion Questions? Comments? More of this Feature Introduction

Hiding Your Email Address
Hiding Your Email Address Join the Discussion Questions? Comments? Related Resources Email Address Validation

Country Selection Form
Country Selection Form Join the Discussion Questions? Comments? When you are creating a form, you often

Calendar Generator
Create the HTML code for a calendar to add to your page

Returning Multiple Values
Returning Multiple Values Join the Discussion Questions? Comments? You can pass multiple values to a

Countdown Timer
Countdown Timer 1. Introduction and Sample Join the Discussion Questions? Comments? More of this Feature

Popup Window Reference
window.open Reference The window.open command takes the following format: var newWin = window.open(url,winName,features,replace);

Form Events
Learn Javascript Form Events Join the Discussion Questions? Comments? More of this Tutorial Page Events

browser window script in action
Browser Window Size and Position 2. Sample Join the Discussion Questions? Comments? More of this Feature

insertBefore
The Javascript DOM 12. insertBefore Join the Discussion Questions? Comments? More of this Feature Introduction

Blur
JavaScript Glossary definition for: Blur

removeChild
The Javascript DOM 9. removeChild Join the Discussion Questions? Comments? More of this Feature Introduction

Image Zoom
Image Zoom Join the Discussion Questions? Comments? How would you like to offer visitors to your web

Javascript 101
Want to use Javascript on your web pages? There are several alternatives.

Random Array Sort
Random Array Sort Join the Discussion Questions? Comments? Related Resources Numeric Sort Ignore Case

min-width and max-width for IE6
min-width and max-width for IE6 Join the Discussion Questions? Comments? The two basic choices that you

Credit Card Validation
Validate credit card numbers in forms with this Javascript routine for validating the length and check digits.

Disable No Right Click Scripts
Disable No Right Click Scripts Join the Discussion Questions? Comments? Related Resources View Source

Numeric Test
Numeric Testing Join the Discussion Questions? Comments? There are a number of different ways to test

Defining Variables
Learn Javascript Defining Variables Join the Discussion Questions? Comments? More of this Tutorial Getting

Sliding Menu
Part 2: The Script Part 3: Make Your Menu M EN U Sliding Menu 1. Introduction and Sample Join the Discussion

Numbers to Words
Numbers to Words Join the Discussion Questions? Comments? Related Articles Formatting Numbers Roman Numerals

Countdown Timer Script
Countdown Timer 2. The Timer Script Join the Discussion Questions? Comments? More of this Feature Introduction

responseText and responseXML
Introduction to Ajax 8. responseText and responseXML Join the Discussion Questions? Comments? More of

Validate on Submit
Validate on Submit 1. Why Validate Join the Discussion Questions? Comments? More of this Feature Submit

Print Directly to Printer
An explanation of some of the reasons why Javascript can't print a page without the print dialog popping up.

Checkbox Group Example
Limiting Selections 1. Sample Page Join the Discussion Questions? Comments? More of this Feature Obtain

Email Address Validation
Validate email addresses in forms with this Javascript routine for validating email addresses.

Vertical Scroller Script
Vertical Scroller 2. Obtain the Script Join the Discussion Questions? Comments? More of this Feature

Defining Tooltips
Extended Tooltip 3. Defining Tips Join the Discussion Questions? Comments? More of this Feature Introduction

Validate Text Fields
Text Field Validation Join the Discussion Questions? Comments? Related Resources Tutorials Text fields

What Version of Javascript
What Version of Javascript Join the Discussion Questions? Comments? Glossary Javascript ECMAscript Javascript

Rollover Gallery Sample
Rollover Gallery 1. Introduction and Sample Join the Discussion Questions? Comments? More of this Feature

Date and Time
Learn Javascript Date and Time Join the Discussion Questions? Comments? More of this Tutorial Mathematical

Making the Calendar Popup
Calendar Popups 2. Which Calendar Join the Discussion Questions? Comments? More of this Feature The Script

Read Parameters Passed Via Query Strings
Passing Parameters Via Query Strings 3. Read Querystrings Join the Discussion Questions? Comments? More

Falling Snow Sample
Falling Snow 1. Introduction and Sample Join the Discussion Questions? Comments? More of this Feature

Drop Down Lists
Site Navigation 1. Introduction Join the Discussion Questions? Comments? More of this Feature Drop Down

The WHILE Loop
Learn Javascript The WHILE Loop Join the Discussion Questions? Comments? More of this Tutorial The FOR

Week of Year Date Method
Week of Year Adding to the Date Object Join the Discussion Questions? Comments? Related Resources Day

Alphabetic and Numeric Validations
Alphabetic and Numeric Join the Discussion Questions? Comments? Related Resources Mandatory Fields Javascript

Submitting after validation
Validate on Submit 3. Submit If Valid Join the Discussion Questions? Comments? More of this Feature Why

Drop Down Menu Head Script
Drop Down Menu 2. Head Script Join the Discussion Questions? Comments? More of this Feature Introduction

Image Protection
Image Protection Join the Discussion Questions? Comments? More of this Feature How to Use this Form Using

Daylight Saving Time Adjustment
Displaying Author Local Time 4. Daylight Saving Join the Discussion Questions? Comments? More of this

Follow the Mouse Sample
Follow the Mouse 1. Introduction Join the Discussion Questions? Comments? More of this Feature Obtain

Deleting Cookies
Deleting Cookies Join the Discussion Questions? Comments? More About Cookies Writing Cookies Reading

JavaScript and Unicode
JavaScript can work with unicode as well as ASCII.

Email Address Validation Sample
Email Address Validation 1. Introduction and Sample Join the Discussion Questions? Comments? More of

Formatting Numbers
Formatting Numbers Join the Discussion Questions? Comments? When you are processing numbers with javascript

Getting Started
Introduction to a series of tutorials on programming with JavaScript

Browser Detection
Browser Detection Join the Discussion Questions? Comments? One rather interesting statistic that you

Open an AJAX Request
Introduction to Ajax 2. Open Request Join the Discussion Questions? Comments? More of this Feature XMLHttpRequest

Head Scripts and Body Scripts
Head Scripts and Body Scripts Join the Discussion Questions? Comments? You don't need to be able to write

Mouseover Script
Mouseover Script 1. Instructions More of this Feature Generator Form Mouseover Links One of the most

replaceChild
The Javascript DOM 13. replaceChild Join the Discussion Questions? Comments? More of this Feature Introduction

Dynamic Dropdown Two Selects
Dynamic Dropdowns Based on Another Dropdown Join the Discussion Questions? Comments? More of This Feature

obtain browser window functions
Browser Window Size and Position 3. Obtain the Script Join the Discussion Questions? Comments? More of

JavaScript Encryption
JavaScript Encryption Join the Discussion Questions? Comments? There are a number of things that are

Ajax - Get or Post
When should you use GET and when should you use POST with Ajax.

Sliding Menu Script
Part 2: The Script Part 3: Make Your Menu M EN U Sliding Menu 2. Obtain the Script Join the Discussion

Email Address Validation Script
Obtain a script to validate email addresses in forms.

How to attach JavaScript into Your Page.
How to Attach JavaScript into Your Page. Join the Discussion Questions? Comments? To be able to use JavaScript

Falling Snow
It can snow all year round on your web page if you install this special effects JavaScript.

Mandatory Fields
Mandatory Fields Join the Discussion Questions? Comments? The simplest field validation is to test a

JavaScript Windows
JavaScript is now the only way supported by current standards for opening a new window and even there you really need to think about whether you really should.

Last Day of Month
Last Day of the Month Join the Discussion Questions? Comments? There are various times when you are doing

Event Calendar
Event Calendar 1. Introduction Join the Discussion Questions? Comments? More of this Feature Javascript

Vertical Scroller
Vertical Scroller 1. Introduction and Sample Join the Discussion Questions? Comments? More of this Feature

Ajax - Asynchronous
When should you use asynchronous Ajax calls and when should you use synchronous.

Submit the form only once
Validate on Submit 4. Avoid Multiple Submits Join the Discussion Questions? Comments? More of this Feature

Miles and km with the Time/Distance Calculator
Distance Calculator with Times 4. Miles and Kilometres Join the Discussion Questions? Comments? More

Combo Box Navigation
Site Navigation 8. Combo Navigator Join the Discussion Questions? Comments? More of this Feature Introduction

Mouse Events
Learn Javascript Mouse Events Join the Discussion Questions? Comments? More of this Tutorial Event Handlers

Obtain the Analog Clock Head Scripts
Analog Clock 2. The Head Script Join the Discussion Questions? Comments? More of this Feature Introduction

Variable Scope
Learn Javascript Variable Scope Join the Discussion Questions? Comments? More of this Tutorial Functions

The SWITCH Statement
When testing one field for multiple possible values a JavaScript switch statement is more efficient than using nested if statements.

Linking to Tooltips
Extended Tooltip 4. Linking to Tips Join the Discussion Questions? Comments? More of this Feature Introduction

Drop Down Navigation
Site Navigation 2. Drop Down Navigation Join the Discussion Questions? Comments? More of this Feature

Drop Down Menu Customize Script
Drop Down Menu 3. Customize the Menu Join the Discussion Questions? Comments? More of this Feature Introduction

Positioning the Popup Window
Changing the size of the popup window.: sans serif font left position popup windows desired position body background

Instanceof
JavaScript Glossary definition for: Instanceof

Window Close
Window Close Join the Discussion Questions? Comments? In my series of articles on popup windows I go

Addslashes and Stripslashes
Addslashes and Stripslashes Join the Discussion Questions? Comments? If you are used to programming your

appendChild
The Javascript DOM 11. appendChild Join the Discussion Questions? Comments? More of this Feature Introduction

Using NOSCRIPT
Learn Javascript Using Noscript Join the Discussion Questions? Comments? More of this Tutorial External

Cross Browser Ticker/Marquee Example
Cross Browser Ticker/Marquee 1. Introduction and Sample More of this Feature Obtain RtoL Script Obtain

Multiple Analog Clock Script
Multiple Analog Clocks 1. Introduction Join the Discussion Questions? Comments? More of this Feature

undefined
JavaScript Glossary definition for: undefined

Value of a Function
Learn Javascript Value of a Function Join the Discussion Questions? Comments? More of this Tutorial Functions

Adding Days to a Date
Adding Days to a Date Join the Discussion Questions? Comments? Adding or subtracting a number of days