A ver si te sirve este que yo ocupo
Código PHP:
<html>
<head>
<title>Linterns</title>
</head>
<body bgcolor="#FFFFFF" text="#000000">
<script language="JavaScript" type="text/javascript">
<!--
function isnArray() {
argnr=isnArray.arguments.length
for (var i=0;i<argnr;i++) {
this[i+1] = isnArray.arguments[i];
}
}
var today = new Date(document.lastModified);
var isnMonths=new isnArray("Enero","Febrero","Marzo","Abril","Mayo","Junio","Julio","Agosto","Septiembre","Octubre","Noviembre","Diciembre");
var isnDays= new isnArray("Lunes","Martes","Miercoles","Jueves","Viernes","Sábado","Domingo");
isnDays[0]="Domingo";
document.write(" <b>Ultima modificación: " + isnDays[today.getDay()] +", "+today.getDate() +" de "+isnMonths[today.getMonth()+1]+" de "+today.getYear() +"</b>")
// -->
</script>
</body>
</html>