Select Multiple Days

This script is for a datepicker. Can someone help modify this script so that it disables Tuesday, Thursday & Sunday. It currently works for Sunday only and can't figure out how to make it work for multiple days.

<script type="text/javascript">
function noSundays(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";...

Code (markup):

Select Multiple Days

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