Código:
  
Me avisa si funciona!! <html>
<head>
<title>Revisa el estado de ICQ, Yahoo! y MSN Messenger en Potter System</title>
<script language="JavaScript">
<!--
function mostrar(){
	newwin = window.open('','','top=200,left=200,width=500,height=200');
	newwin.opener = self; 
	with (newwin.document){
		open();
		write('<html><title>Buscas a '+ usu.value +' en '+ chat.value +'</title><body bgcolor="#000000" text="#FFFFFF" link="#FFFFFF">');
		write('<center><font face="Arial, Helvetica"> <b>Usuario</b> '+ usu.value);
		if (chat.selectedIndex == 0)
			write('<br><center><img border=0 src="http://opi.yahoo.com/online?u=' + usu.value + '&m=g&t=1"></center>');
		else
		if (chat.selectedIndex==1)
			write('<br><center><img border=0 src="http://online.mirabilis.com/scripts/online.dll?icq=' + usu.value + '&img=2"></center>');
		else
		write('<br><center><img border=0 src="http://status.trollprod.com:8080/msn/' +usu.value + '"></center>');
			write('<p>Powered by <a href="http://pottersystem.web1000.com" target="_self"> Potter System </a></font></center></body></html>');
		close();
   }
}
//-->
</script>
</head>
<body bgcolor="#000000" text="#FFFFFF" link="#FFFFFF">
<p align="center"> 
  <select name="chat">
    <option value="Yahoo! Messenger">Yahoo!</option>
    <option value="ICQ">ICQ </option>
    <option vale="MSN Messenger">Messenger </option>
    <option selected>Sistema de mensajería</option>
  </select>
  <inpt type="text" name="usu" value="Escribe aquí el mail de tu amigo o enemigo (je)" size="31">
  <input type="buton" onClick="mostrar();" name="buscar" value="Buscar">
</q>
<q align="center"> </p>
</body>
</html>
 
 


 
  
 
