I need to change the date format to insert it in database but unfortunately changing the dateFormat variable is not working. I have some validations to advance the date against the current date and to make the exceeding date un-clickable.
<script>
  $( function() {
    var dateFormat = "mm/dd/yy",
      from = $( "#sd" )
        .datepicker({
             showOn: "button",
            buttonImage: "images/cal-icon.png",
            buttonImageOnly: true,
          minDate: ("setDay, +4"),
          maxDate: "+3M +10D",
          changeMonth: true,
          numberOfMonths: 2
        })
        .on( "change", function() {
          to.datepicker( "option", "minDate", getDate( this ) );
        }),
      to = $( "#ed" ).datepicker({
            showOn: "button",
            buttonImage: "images/cal-icon.png",
            buttonImageOnly: true,
        defaultDate: "+1w",
        changeMonth: true,
        numberOfMonths: 2
      })
      .on( "change", function() {
        from.datepicker( "option", "maxDate", getDate( this ) );
      });
    function getDate( element ) {
      var date;
      try {
        date = $.datepicker.parseDate( dateFormat, element.value );
      } catch( error ) {
        date = null;
      }
      return date;
    }
  } );
  </script>
 
     
    