jQuery.focus() and move cursor at the end of input

jquery.focus.override.coffee

# jQuery extensions
(($) ->
  _super = { }
  #
  # [..] some other extensions
  #
  _super.focus = $.fn.focus
  $.fn.focus = ->
    # call out the original jQuery focus 
    _super.focus.apply(this, arguments)
    # set cursor at the end of val
    v = this.val()
    this.val('')
    this.val(v)
    this

  return
) jQuery

# javaScript compilation:
#
# (function($) {
#   var _super = {};
#   _super.focus = $.fn.focus;
#   $.fn.focus = function() {
#     var v;
#     _super.focus.apply(this, arguments);
#     v = this.val();
#     this.val('');
#     this.val(v);
#     return this;
#   };
# })(jQuery);