HTML and CSS Reference
In-Depth Information
Some Necessary Properties
For this application we need a few properties to set everything up.
The
alpha
property is the value that we will apply to
context.globalAlpha
to set the trans-
parency value for text that we will fade in and out. It is set to
0
to start, which means the text
will start completely invisible. We will explain more about this in the next section.
The
fadeIn
property will tell our application if the text is currently fading in or fading out.
The
text
property holds the string we will display.
The
helloWorldImage
property will hold the background image we will display behind the
fading text:
var
var
alpha
=
0
;
var
var
fadeIn
=
true
true
;
var
var
text
=
"Hello World"
;
var
var
helloWorldImage
=
new
new
Image
();
helloWorldImage
.
src
=
"html5bg.jpg"
;