<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>ajax </title>
<script src="../jquery-1.3.1.js"> </script>
<script>
var xmlHttpReq = null;
function Ajax(){
alert("1")
if(window.ActiveXObject){
xmlHttpReq = new ActiveXObject("Microsoft.XMLHTTP");
}else if(window.XMLHttpRequest){
xmlHttpReq = new XMLHttpRequest();
}
alert("2")
xmlHttpReq.open("GET","test.html",true);
xmlHttpReq.onreadystatechange = RequestCallBack;
xmlHttpReq.send(null);
alert("3")
}
function RequestCallBack(){
alert("4")
if(xmlHttpReq.readyState == 4){
alert("6")
if(xmlHttpReq.staus == 200){
alert("5")
document.getElementById("resText").innerHTML = xmlHttpReq.responseText;
}
}
}
</script>
我在网站里面加上了AJAX的应用。原来捕捉session timeout是在ON_PAGELOAD事件里面处理的。但是加上ajax后就不再起作用了。 老是显示Object reference not set to an instance of an object.应该就是session值已经清� ......
