<script type="text/javascript">

var d=new Date()
var weekday=new Array(7)
weekday[0]="SUNDAY"
weekday[1]="MONDAY"
weekday[2]="TUESDAY"
weekday[3]="WEDNESDAY"
weekday[4]="THURSDAY"
weekday[5]="FRIDAY"
weekday[6]="SATURDAY"

document.write(weekday[d.getDay()])

</script>