Jquery填充select option和callback

遍历:function getNameById(id,index){
     getAlldata(function(list){
      $(list).each(function(i,obj){
       if(obj.serverId == id){
        $("#"+index+"-"+id).html("<span style='margin-left:5px;'><a href='javascript:void(0)' title='"+obj.name+"'>"+obj.name+"</a></span>");
        return false;
       }
      });
     });
    }

callback回调

 function getAlldata(callback){
     if(!alldata){
      $.ajax({
       url : "<%=request.getContextPath()%>/forecastModelSystem/queryAllExistedSystem.action",
       type : "POST",
       async : false,
       success : function(response){
        var list = response.resultMap.list;
        if(!list){
         alert("<s:text name="data.acquisition.failed"/>");
         return;
        }
        alldata = list;
       }
      });
     }

填充下拉框

/**
     * 填充
     */
    function fillformdata(callback){
     $("#serverId")[0].options.length = 0;
     // 获取数据填充
     getAlldata(function(vpfList){
      $("#serverId")[0].options.add(new Option("--<s:text name='capacityplanner.virtualEvaluateResult.assessment.view.select'/><s:text name='capacityplanner.virtualEvaluateResult.scenarioplan.view.system'/>--","-1"));
      $(vpfList).each(function(index,obj){
       var option = new Option(obj.name,obj.serverId);
        $("#serverId")[0].options.add(option);
      });
      if(callback instanceof Function){
       callback.call(this);
      };
     });
    }
    
     if(callback instanceof Function){
      callback.call(this,alldata);
     };
    
    }