calendario basico
CODIGO
<html>
<head>
<title>Fecha actual, dia, mes y año</title>
</head>
<body>
<script>
var mydate=new Date();
var year=mydate.getYear();
if (year < 1000)
year+=1900;
var day=mydate.getDay();
var month=mydate.getMonth()+1;
if (month<10)
month="0"+month;
var daym=mydate.getDate();
if (daym<10)
daym="0"+daym;
document.write("<small><font color='000000' face='Arial'><b>"+daym+"/"+month+"/"+year+"</b></font></small>")
</script>