document.write('  <DIV id=\'etiqueta\'>teste</DIV>\n');
document.write('  <STYLE type=\'text/css\'>\n');
document.write('   #etiqueta {\n');
//document.write('  	Z-INDEX: 200; VISIBILITY: hidden; POSITION: absolute}\n');
document.write('  	Z-INDEX: 200; VISIBILITY: visible; POSITION: absolute}\n');
document.write('    </STYLE>\n');  
<!--
Xoffset=-150; // mudar estes valores para
Yoffset= 20;    // mudar a posição.

var old,skn,iex=(document.all),yyy=-1000;

var nts4=document.layers
var nts6=document.getElementById&&!document.all
var iex4=document.all

//alert("nts4:" + nts4 + "\nnts6:" + nts6 + "\niex4:" + iex4)

if (nts4)
	skn = MM_findObj('etiqueta');
else if (nts6)
	skn = MM_findObj('etiqueta').style;
else if (iex4)
	skn = MM_findObj('etiqueta').style;


if(nts4)document.captureEvents(Event.MOUSEMOVE);
else{
	skn.visibility="visible"
	skn.display="none"
}
document.onmousemove=get_mouse;


function mostra(msg,bak,brd){
	var content="<TABLE  WIDTH=180 BORDERCOLOR=black CELLPADDING=0 CELLSPACING=0 BGCOLOR="+brd+"><TR><TD><TABLE  WIDTH=180 BORDERCOLOR=black CELLPADDING=1 CELLSPACING=1"+
	"><TR><TD ALIGN=center BGCOLOR="+bak+"><FONT FACE='Verdana, Arial, Helvetica, sans-serif' COLOR=black SIZE=1>"+msg+"</FONT></TD></TR></TABLE></TD></TR></TABLE>";
	yyy=Yoffset;
	 if(nts4){skn.document.write(content);skn.document.close();skn.visibility="visible"}
	 if(nts6){document.getElementById("etiqueta").innerHTML=content;skn.display=''}
	 if(iex4){document.all("etiqueta").innerHTML=content;skn.display=''}
}

function get_mouse(e){
	if (nts4){
		var x=e.pageX;
		var y=e.pageY;		
	}else if (nts6){
		var x=e.clientX+document.body.scrollLeft;
		var y=e.clientY+document.body.scrollTop;
	}else if (iex4){
		var x=event.x+document.body.scrollLeft;
		var y=event.y+document.body.scrollTop;
	}
	skn.left=x+Xoffset;
	skn.top=y+yyy;
}

function esconde(){
	yyy=-1000;
	if(nts4){skn.visibility="hidden";}
	else if (nts6||iex4)
	skn.display="none"
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}
//-->