<script type="text/javascript" charset="utf-8">  
  $(document).ready(function() {
 
    // Identify this question
    var thisQuestion = $('#question{QID}');
 
    // Make dates
    var mindate = new Date();
    var maxdate = new Date();
 
               var str= {date1};
 
    // Insert the datepicker
    $('input[type="text"]', thisQuestion).datepicker({
      dateFormat: "dd/mm/yy",
      minDate: new Date(Date.parse(str.substring(0,9))),
      maxDate: new Date();
    });  
 
    // Fix up the datepicker position
    $('input[type="text"]', thisQuestion).on('click focus', function() {
      $("#ui-datepicker-div").position({
        my: "left top",
        at: "left-3 top-3",
        of: $(this)
      });
    });  
  });  
</script>

// Insert the datepicker
$('input[type="text"]', q1).datepicker({
  showButtonPanel: true,
  dateFormat: "dd/mm/yy",
    changeMonth: true,
    changeYear: true,
    minDate: "-40y",
    onSelect  : function(e) {
      var el = $(this);
      checkconditions($(el).attr('value'), $(el).attr('name'), $(el).attr('type'));
    },
    maxDate: new Date()
});