       if _.isNaN(offset)
         offset = @model.defaults.offset
       @model.save('offset', offset, {wait : true})
-
+      e.preventDefault()
   pandassize : (e) ->
     if e.keyCode == ENTER
       sizetxt = @$el.find('.pandassize').val()

      code = $(e.currentTarget).val()
      source = @model.get_obj('source')
      source.rpc('search', [code])

  column_del : (e) =>
    source = @model.get_obj('source')
    old = source.get('computed_columns')

        offset : 0
      )
      @model.save()
      e.preventDefault()
      return false


