Validating array inputs using jquery validation plugin

 <script>  
 $(document).ready(function(){  
      //save complaint  
     $("#submitcomplaint").click(function(){  
      $("#fcomplaint").validate({  
           debug: false,  
         showErrors: function(errorMap, errorList) {  
           $(".errormsg").html($.map(errorList, function(el) {  
             return el.message;  
           }).join(", "));  
         },  
         wrapper: "span",  
           rules: {                 
                'complaintdesc[]': "required",                 
           },  
           messages: {                 
                'complaintdesc[]': "please enter complaint description",  
           },  
           submitHandler: function(form) {                 
                //$.post('updatecomplaint.php', $("#fcomplaint").serialize(), function(data) {                      
                //     alert(data.pesan);                                          
                //},"json");  
             alert('test save data :'+$("#fcomplaint").serialize());  
           }  
      });  
      });  
 });  
 </script>  

 <form name="fcomplaint" id="fcomplaint" method="post">  
     <div id="form-complaint">  
       <div class="errormsg"></div>  
       <hr />  
       <div id="form-complaint-sub">  
             <div>  
                 Complaint Type :   
             </div>  
             <div>  
               <select name="complaint_type[]">  
                 <option value="1">Hotel & Villa</option>  
                 <option value="2">Activity</option>  
               </select>  
             </div>  
             <div>  
                 Complaint Description :   
             </div>  
             <div>  
                 <textarea name="complaintdesc[]" cols="45" rows="4"></textarea>  
             </div>  
       </div>  
       <div id="form-complaint-sub">  
             <div>  
                 Complaint Type :   
             </div>  
             <div>  
               <select name="complaint_type[]">  
                 <option value="1">Hotel & Villa</option>  
                 <option value="2">Activity</option>  
               </select>  
             </div>  
             <div>  
                 Complaint Description :   
             </div>  
             <div>  
                 <textarea name="complaintdesc[]" cols="45" rows="4"></textarea>  
             </div>  
       </div>  
      </div>  
      <hr />   
      <div>  
         <input type="submit" name="submitcomplaint" id="submitcomplaint" value="Save">  
      </div>  
   </form>  

result :