jqueryFormvalidator Ajax修改數據驗證是否存在

var accErrorMsg = "請輸入客戶分類名稱"; 
//表單數據驗證 
$(function(){ 
                //$.formValidator.initConfig({formid:"myform",autotip:true});    
        $.formValidator.initConfig({ 
                    formid:"myform", 
                    autotip:true 
                }); 
                 
                $("#name").formValidator({ 
                onshow:"請輸入客戶分類名稱", 
                onfocus:"2至20個字符", 
                oncorrect:"輸入正確"}).functionValidator({ 
                                        fun: function(){ 
                                            var roleName = $("#name").val(); 
                                            if(trim(roleName)=="") 
                                            { 
                                                 accErrorMsg = "請輸入客戶分類名稱"; 
                                                 return accErrorMsg; 
                                            }else if(trim(roleName).length==1 ||trim(roleName).length>20){ 
                                                 accErrorMsg="2至20個字符"; 
                                                 return accErrorMsg; 
                                            } 
                                            else 
                                            {                                                
                                                return true; 
                                            } 
                                        } 
                                    }).ajaxValidator({ 
                                        type:"post", 
                                        url: "${basePath}clientSortSTManage/clientSortST!isClientSortNameExist.action", 
                                        datatype: "json", 
                                        timeout: 3000,   
                                        success: function(data) 
                                        { 
                                            //將老角色名與新角色名比較，如果一樣判為通過 
                                            var oldName = $('#oldName').val(); 
                                         
                                            var rName = $('#name').val();    
                                            if(oldName && oldName==rName) 
                                            { 
                                                return true; 
                                            }        
                                         
                                            //根據ajax返回結果判斷       
                                            var correct = data.correct; 
                                            if(correct) 
                                            { 
                                                return true; 
                                            } 
                                            else 
                                            { 
                                                return false; 
                                            } 
                                             
                                             
                                        },                               
                                        error: function() 
                                        { 
                                            artalert("服務繁忙,請稍后再試!"); 
                                        }, 
                                        onerror : "客戶分類名稱已存在，請更換客戶分類名稱", 
                                        onwait : "正在對客戶分類名稱進行校驗，請稍候…" 
                                    }).defaultPassed(); 
})