To include this FX in your document you need to put the the following in the HEAD section of your document

<!-- *** BEGIN CUT - Start Code *** -->
<!-- (* Another free JavaScript © from JavaScript-FX.com *) -->
<SCRIPT LANGUAGE="javascript" SRC="javascript/JSFX_Layer.js"></SCRIPT>
<SCRIPT LANGUAGE="javascript" SRC="javascript/JSFX_TextfFader.js"></SCRIPT>
<SCRIPT LANGUAGE="javascript" TYPE="text/javascript">
<!--
var myFader = new JSFX.TextFader();

var msg1="This is message 1";
var msg2="This is message 2";

//-->
</SCRIPT>
<!-- *** END CUT - End Code *** -->

In the document body, where you want the message text to appear, place the following HTML

<SCRIPT LANGUAGE="javascript" TYPE="text/javascript">
myFader.toHtml(200,80);
</SCRIPT>

Where.
Param1: 200 - The width of the text area
Param2: 80 - The height of the text area

For example. To place the fader in a centered table

<TABLE width="200" cellspacing="0" cellpadding="0" border="4" align="center">
<TR>
	<TD><script language="JavaScript">
			document.write(myFader.toHtml(200,80));
			</script></TD>
</TR>
</TABLE>

To add descriptions to links you need to add onMouseOver and onMouseOut to your links tags

<a href="mylink.html"
onMouseOver="myFader.fadeUp(msg1)"
onMouseOut="myFader.fadeDown()">Link 1</a>

Where msg1 is one of the messages defined in the HEAD section shown previously

Or

<a href="mylink.html"
onMouseOver="myFader.fadeUp('This is a literal message')"
onMouseOut="myFader.fadeDown()">Link 2 </a>

Also See...
Using External ".js" Files
Combining Multiple Scripts.