$('.input-daterange').datepicker({
                        format: "dd/mm/yyyy",
                        todayBtn: "linked",
                        calendarWeeks: true,
                        autoclose: true,
                        todayHighlight: true
                    });

                $('#fromDate, #toDate').datepicker('setDate', new Date());

<table>
     <tr class="input-daterange input-group" id="datepicker">
       <td>
          <input id="fromDate" type="text" class="input-sm form-control" name="start"/>
          <span id="toDate" class="input-group-addon">to</span>
          <input type="text" class="input-sm form-control" name="end" />
       </td>
     </tr>
</table>

<input value="<%= Date.today.strftime('%d/%m/%Y') %>" id="fromDate" type="text" class="input-sm form-control" name="start"/>
<span id="toDate" class="input-group-addon">to</span>
<input value="<%= Date.tomorrow.strftime('%d/%m/%Y') %>" type="text" class="input-sm form-control" name="end" />