Between your head tags:
PHP Code:
<script language="JavaScript">
<!--
day = new Date();
strday = (day.getMonth() + 1) + '/' + day.getDate();
function sd(){ document.write(strday); }
//-->
</script>
Where you want the date to appear:
PHP Code:
<script language="JavaScript">
<!--
sd();
//-->
</script>