ajax局部刷新一个div下jsp内容的方法

<script type="text/javascript"> var xmlhttp; function startrefresh(){ xmlhttp=new XMLHttpRequest(); xmlhttp.open("POST,"ss.jsp",true); xmlhttp.setRequestHeader("Content-type","application/x-www-form-urlencoded"); //xmlhttp.send("name=wk"); --需要传输参数时增加 xmlhttp.onreadystatechange = function(){ if(xmlhttp.readyState == 4) if(xmlhttp.status == 200) document.getElementById("mydvi").innerHTML=xmlhttp.responseText; } } </script>