前台利用隐藏域实现随意取值问题（Jquery）

1.前台代码，定义一个隐藏域

<input type="hidden" id="closeWindow"/>

2.利用Jquery向隐藏域里面存值

    function alarmalert(flag) {
        var data;
        if(mark==1){
            data = {flag:flag,mark:1};
        }else{
            data = {flag:flag};
        }
        $.ajax({
               url:format_url('/message/getAlarmAlert'),
               type: "get",  
               dataType : "json",
               async: true,
               data: data,
               success:function(result){
                   if(result) {
                     result = $.parseJSON(result);
                     var data = result.alarmID+","+result.module+","+result.deviceType+","+result.farmName+","
                                 +result.deviceName+","+result.time+","+result.alarmCode;
                     $('#closeWindow').val(data);//将值存到隐藏域中
                           loadAlarmData(result.farmDesc+" "+result.time+" "+result.deviceDesc+" "+result.descriptionCN, flag);
                   }
                   result = null;
               },
               complete: function(XMLHttpRequest, textStatus) {
                   XMLHttpRequest = null;
                   textStatus = null;
               },
               error: function(XMLHttpRequest, textStatus, errorThrown){
                   XMLHttpRequest = null;
                   textStatus = null;
                   errorThrown = null;
               }
        });
    }

3.隐藏域取值

    function closeWindow(){
      var data = $('#closeWindow').val();//取值
        $.ajax({
               url:format_url('/message/closeAlarmAlert'),//利用ajax返回后台 
               type: "get",  
               dataType : "json",
               async: true,
               data: {data:data}
        });
    };