Javascripts script tags,
You can enter JavaScript in a HTML page in 4 different ways
- JavaScript within the Script-tag
- With the attribute language in HTML 3.2
<SCRIPT language="Javascript"></SCRIPT>
<SCRIPT language="Javascript1.1"></SCRIPT>
<SCRIPT language="Javascript1.2"></SCRIPT>
<SCRIPT language="Javascript1.3"></SCRIPT>- With the attribute type in HTML 4.0
<SCRIPT type="text/javascript"></SCRIPT>- To hide Javascript for browsers who doesn't support this.
<SCRIPT type="text/javascript">
<!-- start hiding
...
// end hiding here -->
</SCRIPT>
- Javascript as a external file.
<SCRIPT src="filename.js"></SCRIPT>
- JavaScript entities as attributes in HTML
Javascript entities have a & (ampersand) in front, are between {} and ends with ;
They can be placed where a HTML-attribute could be placed.
Example:
<HR width="&{linelength};">
As a event handler
<INPUT NAME="usersname" onblur="validename(this.value)">
- Adding a default script language in the HEAD (HTML4)
<META http-equiv="Content-Script-Type" content="text/javascript">
- Adding a NOSCRIPT-tag for browsers who don't support javascript
<SCRIPT language="javascript">
<!-- start
...
// end -->
</SCRIPT>
<NOSCRIPT>
...
</NOSCRIPT>
