1. Copie el codigo al HEAD de tu documento HTML
2. Copie el ultimo codigo al BODY de tu documento HTML -->
<!-- PASO 1: Pegue este codigo dentro del HEAD de tu documento HTML -->
<head>
<SCRIPT language=JavaScript>
var yourwords = "* Free Java Scripts from the Source! *";
var buffer1=" ";
var buffer2=" ";
var message1=buffer1+yourwords+buffer2;
var dir = "left";
var speed = 75;
function pingpong()
{
if (dir == "left")
{
message2=message1.substring(2,message1.length)+" ";
window.status=message2;
setTimeout("pingpong();",speed);
message1=message2;
if (message1.substring(0,1) == "*") dir="right";
}
else
{
message2=" "+message1.substring(0,message1.length-2);
window.status=message2;
setTimeout("pingpong();",speed);
message1=message2;
if (message1.substring(message1.length-1,message1.length) == "*")
dir="left";
}
}
</SCRIPT>
</head>
<!-- PASO 2: Modifique el BODY tag como aparece:-->
<BODY onLoad="pingpong()">
</BODY>