JavaScript Language Versus Type Attribute
After updating an old webpage, I validated the HTML on the page with the
W3C Markup Validation Service. One
of the errors reported for the page was the following one:
Line 19, Column 30: required attribute "TYPE" not specified
<script language="JavaScript">
The attribute given above is required for an element that you've used, but you
have omitted it. For instance, in most HTML and XHTML document types the "type"
attribute is required on the "script" element and the "alt" attribute is
required for the "img" element.
Typical values for type are type="text/css" for <style> and type=
"text/javascript" for <script>.
In the head section of the HTML code, I had the following line:
<script language="JavaScript">
I didn't realize that the language attribute has been deprecated
in favor of the type attribute. According to a posting I found
at HTML Script tag: type or language?
The language attribute has been deprecated. Both will work in pretty much all
browsers, but the first better adheres to modern standards.
The javascript code on the page was working as expected when I viewed the page
with a browser, but I changed the line to the one below:
<script type="text/javascript">
[/network/web/browser/javascript]
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SoundManager 2
While looking for a method to associate sounds with links on a webpage
for someone who wanted to have visitors to her website hear sounds of
pages turning when they clicked on left and right arrows on the
webpages, I came across
SoundManager 2, which uses JavaScript and Flash to provide a method
for playing sounds when someone clicks on an image, moves a mouse over it
etc. The software was developed by Scott Schiller and is free.
[/network/web/browser/javascript]
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Internet Explorer JavaScript Support
JavaScript
is often used to create dynamic webpages. However, when designing webpages
you can't be certain that all users will visit your webpages with a browser
capable of handling JavaScript code. Very old browsers or text-only browsers
won't process the JavaScript code. Or an Internet Explorer user may have
JavaScript support disabled. You can include code on a webpage to test
whether JavaScript is supported and enabled.
[ More
Info ]
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