Adding a Syntax Highlighter don't not work on https Before markup : <script> $(function() { $( "#check_in" ).datepicker({ defaultDate: "+1w", changeMonth: true, minDate: 0, onClose: function( selectedDate ) { var selectedDate = $(this).datepicker('getDate'); if (selectedDate) { selectedDate.setDate(selectedDate.getDate() + 1); } $( "#check_out" ).datepicker( "option", "minDate", selectedDate );...