$('._ajax').click(function(){  _ajax.request(this);   return false;  }); var _ajax = {       request: function(o){              var tform = $(o).parents('form');              _ar2(tform,'','_ajax._fb_request');       },       _fb._request: function(d){          d = eval('(' +unescape(d)+ ')');                                                                                                //提交状态提示。   if(d.notification){    if(d.type == 'ok'){     alert('提交成功');        }else if(d.type == 'error'){     alert('提交失败');                                                                                                                        }else{     alert('错误');    }   }  } }

// 改进版 _ar function _ar2(s, target, feedback, param, methods){  var url, method;  var params = {};  if( (s instanceof jQuery) && s.attr("tagName")=='VFORM') {   url  = s.attr('action');   method = s.attr('method');   params = param || $('input, textarea, select',s).serialize();  }else if( (s instanceof jQuery) && s.attr("tagName")=='FORM') {   url  = s.attr('action');   method = s.attr('method');   params = param || s.serialize();  }else if(typeof(s)=='string'){   url  = s; // http://...  }  url = url || '';  method = method || methods || 'GET';  params = param ? param : params;  jQuery.ajax({   type: method,url:url,data:params,   beforeSend: function(){    //jQuery.jGrowl('数据读取中 请稍候..', {  header: '提示', theme: 'blue'});   },   success: function(data) {    //data = jQuery.trim(data).replace(/[\n\t\r]/gi,'');    if(feedback){     eval(feedback+'(\''+escape(data)+'\')');     return;    }else{     if(data){      if(target){       jQuery(target).html(data);       jQuery.jGrowl('页面请求完毕.', {  header: '提示', theme: 'green', 'life': 100});       return;      }     }else{      lg('no feedback');      jQuery.jGrowl('服务器无返回信息.', {  header: '提示', theme: 'blue'});      return;     }    }    jQuery.jGrowl(data, {  header: '提示', theme: 'blue'});   },   error: function (e){    var s = e.status;    switch(s) {     case 404:      jQuery.jGrowl('请求的页面无法找到. 请联系系统管理员.', {  header: '提示', theme: 'blue'});     break;     case 500:      jQuery.jGrowl('服务器错误[500]. 请联系系统管理员.', {  header: '提示', theme: 'blue'});     break;     default:      //log('unknow error');      lg(s);      jQuery.jGrowl('未知错误. 请联系系统管理员.', {  header: '提示', theme: 'blue'});    }   }  }); }