JavaScript Notes - Bob's Digital Photo Gallery

These notes are brief and, hopefully, will improve as I learn.
If you have comments to improve them, send me a note.

Define document as HTML	<html>
Head Section Script tags are most often found in the Head section. Functions, more complex scripts, and defining external scripts (.js) are put in the Head Section.	<head> <title>My JavaScript Notes</title> <Script Language=Javascript Type="Text/Javascript"> <!-- Hide Script from old browsers /This defines a script comment/ // End hiding Script from old beowsers --> </Script> </head>

Body Section Scripts that write text to the screen, or write HTML are best put in the Body section.	<body> <Script Language=Javascript Type="Text/Javascript"> document.write("<B>Hello, world!</B.") </Script> </body>
End of document.	</html>
Misc
The text at right is displayed using script in the coding of this page.
A notice that will display in old browsers.	<noscript> <p>This page requires JavaScript</p> </noscript>
Alert user - This coding triggered the message box when this page loaded.	alert("Welcome to MY JavaScript Notes. Click OK to continue.")
Redirect user	window.location="mypage.html"

Definitions

Objects

bicycle

document

document.image.name

Properties

wheel

Methods

write()

bicycle.wheel

document.write()

Event Handler

onMouseover

onMouseout

onClick

onLoad

Variables

myName

myPix

Values

Bob

myName="Bob"

Conditional

if (testing){
      then this
   }
else {
      or this
   }

Function

function Speak() {
alert("Hello")
}

Calling a function

Usually use an event handler.