An "id=" defined in CSS can only be used once on a page/document.
However, a "name=" can be specified several times within HTML.
To use Javascript to flip between serif and sans-serif faces (and blue to green)
when users move their mouse on a link:
<SCRIPT language="JavaScript">
function mytext_onmouseover() {
mytext.style.fontFamily = "serif";
mytext.style.color = "mediumseagreen" }
</SCRIPT>
...
<BODY>
<DIV ID = mytext STYLE = "FONT-FAMILY: garamond, serif;
FONT-SIZE: 16pt; COLOR: blue; "
onmouseover="mytext_onmouseover()";
onmouseout="mytext_onmouseout()">
</DIV>
This code fragment inserts the URL of the webpage:
<script language="JavaScript">
document.write('<input type=hidden name=u value=');
document.write(document.URL);
document.write('>');
</script>
The ID associated with a DIVision tag allows that tag to be manipulated as an object.
Only Internet Explorer supports
<MARQUEE>, hover, and Cascading Style Sheets in full.
<BLINKING> is only supported by Netscape. Thank goodness.
To get the scrollbar to show on the left
(to flip the whole a layout Arabic style):
<textarea dir="rtl">
HTML 4.0 introduced a new bdo backward direction object tag
that spells "backward" as backward
To disable the Submit button, in the form, add onsubmit="return disableForm(this);" to call this function
Javascript Coding
Take the Brainbench certification test on
Web Development Concepts,
HTML 3.2,
HTML 4.0,
Dynamic HTML, and
Javascript
Speed up Javascript load time
HTML Compress freeware removes unnecessary white space and characters such as
carriage returns, line feeds, spaces and tabs. It can also remove certain HTML tags.
Javascript examples used in this site:
ISO 8879:1986
The 
Validate this site's css file
detailed formatted info on each ECMA-262 object.
