       valid = true
 
       @blocksManager.reset()
-      lastRow = @div.find('.time-block-list-body tr:last').get(0)
 
       @div.find('.time-block-list-body').find('tr').each (i, row) =>
-        return if row == lastRow
+        return if @rowIsBlank(row)
 
         $row = $(row)
         for fieldName in ['date', 'start_time', 'end_time']

      input = event.target
      $input = $(input)
      unless @validField(input)
        # blank rows are OK
        allBlank = true
        for i in $input.closest('tr').find('input')
          allBlank = false if i.value != ''

        $input.addClass 'error' unless allBlank
      else
        $input.val $input.nextAll('.datetime_suggest').text()


      invalidDate = $input.nextAll('.datetime_suggest').hasClass('invalid_datetime')
      !($input.val() == '') && !invalidDate

    rowIsBlank: (row) ->
      blank = true
      for i in $(row).find('input')
        blank = false if i.value != ''
      blank

    blocks: () ->
      ary = []
      for range in @blocksManager.blocks
