function InitAjax()
{
var ajax=false;
try {
ajax = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
try {
ajax = new ActiveXObject("Microsoft.XMLHTTP");
} catch (E) {
ajax = false;
}
}
if (!ajax && typeof XMLHttpRequest!='undefined') {
ajax = new XMLHttpRequest();
}
return ajax;
}
function ajax_get(url,showbox){
//需要进行Ajax的URL地址
//var url="/show.php?id=88";
//获取新闻显示层的位置
var show = document.getElementById(showbox);
//实例化Ajax对象
var ajax = InitAjax();
//使用Get方式进行请求
ajax.open("GET", url, true);
//获取执行状态
ajax.onreadystatechange = function() {
//如果执行是状态正常，那么就把返回的内容赋值给上面指定的层
if (ajax.readyState == 4 && ajax.status == 200) {
show.innerHTML = ajax.responseText;
} else { show.innerHTML = "
";}
}
//发送空
ajax.setRequestHeader("If-Modified-Since","0");
ajax.send(null);
}
function ajax_get_check(url,showbox){
//需要进行Ajax的URL地址
//var url="/show.php?id=88";
//获取新闻显示层的位置
var show = document.getElementById(showbox);
//实例化Ajax对象
var ajax = InitAjax();
//使用Get方式进行请求
ajax.open("GET", url, true);
//获取执行状态
ajax.onreadystatechange = function() {
//如果执行是状态正常，那么就把返回的内容赋值给上面指定的层
if (ajax.readyState == 4 && ajax.status == 200) {
show.innerHTML = ajax.responseText;
} else { show.innerHTML = "";}
}
//发送空
ajax.setRequestHeader("If-Modified-Since","0");
ajax.send(null);
}