function ajax(url,fnsucc,fnFaild){ if(window.XMLHttpRequest){ var oAjax = new XMLHttpRequest(); } else{ var oAjax = new ActiveXObject("Microsoft.XMLHTTP"); } //alert(oAjax); //2.连接到服务器; //open(方法,文件名,异步同步传输) oAjax.open('get',url+"?date="+new Date().getTime(),true); //3.发送请求; oAjax.send(); //4.接收返回; oAjax.onreadystatechange = function(){ if(oAjax.readyState==4){ if(oAjax.status==200){ fnsucc(oAjax.responseText); } else{ if(fnFaild){ fnFaild(oAjax.status); } } } } }