how to append an option to Jquery Ui MultiSelect Plugin

  
  <
  
  select 
  
  title
  
  =
  
  "myselect" 
  
  multiple
  
  =
  
  "multiple" 
  
  id
  
  =
  
  "myselect" 
  
  name
  
  =
  
  "myselect" 
  
  size
  
  =
  
  "5"
  
  >
 
 
 
 
 
  
  <
  
  /select>
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  var 
  
  option 
  
  = 
  
  '<option value="' 
  
  + 
  
  value 
  
  + 
  
  '">' 
  
  + 
  
  value
  
  + 
  
  '</option>'
  
  ;
 
 
 
 
 
  
  $
  
  (
  
  '#myselect'
  
  ).
  
  append
  
  (
  
  option
  
  );
 
 
 
 
 
  
  $
  
  (
  
  '#myselect'
  
  ).
  
  multiselect
  
  ( 
  
  'refresh' 
  
  );
  
  //刷新select数据