Background Effects >>> Write Layer.

<script
		language="javascript"
		type="text/javascript">

		/* Visit http://www.yaldex.com/ 
		for full source code

		and get more free JavaScript, CSS and DHTML scripts! */

		<!-- Begin

		var 
		ie4 =
		(document.all)
		?
		true
		:
		false;

		var 
		ns4 =
		(document.layers)
		?
		true
		:
		false;

		var 
		ns6 =
		(document.getElementById
		&&
		!document.all)
		?
		true
		:
		false;

		function 
		hidelayer(lay)
		{

		if
		(ie4||ns6)
		{document.getElementById([lay]).style.visibility
		=
		"hidden";}

		if
		(ns4)
		{document.layers[lay].visibility
		=
		"hide";}

		}

		function 
		showlayer(lay)
		{

		if
		(ie4||ns6)
		{document.getElementById([lay]).style.visibility
		=
		"visible";}

		if
		(ns4)
		{document.layers[lay].visibility
		=
		"show";}

		}

		function 
		writetolayer(lay,txt)
		{

		if
		(ie4)
		{

		document.all[lay].innerHTML
		= 
		txt;

		}

		if
		(ns4)
		{

		document[lay].document.write(txt);

		document[lay].document.close();

		}

		if
		(ns6)
		{

		over 
		=
		document.getElementById([lay]);

		range 
		=
		document.createRange();

		range.setStartBefore(over);

		domfrag 
		= 
		range.createContextualFragment(txt);

		while
		(over.hasChildNodes())
		{

		over.removeChild(over.lastChild);

		}

		over.appendChild(domfrag);

		   
		}

		}

		//  End -->

		</script>

		<center>

		<SPAN
		ID="newlayer">layer-text</SPAN>

		<br>

		<a
		href="javascript:hidelayer('newlayer');">hide 
		layer</a> 
		| 

		<a
		href="javascript:showlayer('newlayer');">show 
		layer</a> 
		| 

		<a
		href="javascript:writetolayer('newlayer','layer-text 
		#1');">layer-text 
		#1</a> |
		

		<a
		href="javascript:writetolayer('newlayer','layer-text 
		#2');">layer-text 
		#2</a>

		</center>