Although the names are much alike, JavaScript is primarily a scripting language for use within HTML pages, while Java is a real programming language that does quite different things from JavaScript.  JavaScript is the language of choice on the web for performing tasks such as validating data and creating cool user interfaces like dialog boxes and roll-over images.

JavaScript is not a programming language in strict sense. Instead, it is a scripting language because it uses the browser to do the dirty work. If you command an image to be replaced by another one, JavaScript tells the browser to go do it. Because the browser actually does the work, you only need to pull some strings by writing some relatively easy lines of code. That’s what makes JavaScript an easy language to start with.

There are a few restrictions to the ease of use of the Javascript. First of all, despite its simple appearance it is a full fledged programming language: it is possible to write quite complex programs in JavaScript. Secondly, and more importantly, there are the browser differences. Though modern web browsers all support JavaScript, there is no sacred law that says they should support exactly the same JavaScript. A large part of this site is devoted to exploring and explaining these browser differences and finding ways to cope with them. This course is designed to teach you from entry-level to the more advanced and complex programs that can be written by Javascript.

Course Contents

What is JavaScript

History of JavaScript Vi

JavaScript vs . Jscript
Benefits of JavaScript
The Script Tag
Functions
Punctuation And Comments
Keywords
Scope
Types of Variables
Data Type Conversion
Introduction to Arrays
Operators and Expressions
if... else
The Switch Statement
Reiteration
Properties
Methods
Events
Containers
Browser Objects
HTML Objects V

JavaScript Objects
this
with
js files
eval ()
What are Cookies?
Creating Cookies
Reading Cookies
Deleting Cookies
CSS Review
HTML & CSS
Building a Collapsible Tree
Building a Drop Down Menu
Adding Custom Methods
Prototype Video
Building Constructors
Using Constructors
Resizing a Window
Open a New Window
Close the New Window
InterWindow
Communication
on error ()
try & catch
throw
final

The Window
Navigating Through History
Forcing A Page Out Of A Frameset
Forcing A Page Into A Frameset
Extending Existing Objects
Finding The Operating System
Finding The Browser Name
Finding The Browser Version
Sorting Lists
Naming Array Elements
Functions As Data Objects
Dimensioning Arrays
Image Swapping