// ajax代码开始了
var http_request = false;
function makeRequest(url) {

	//document.all.shuaxinshow.innerHTML = '系统正在载入... <img src=/images/zairu.gif>'; //程序触发时,提示语
	http_request = false;

	if (window.XMLHttpRequest) { // Mozilla, Safari,... //设定浏览器 具体请上百度查资料
		http_request = new XMLHttpRequest();
		if (http_request.overrideMimeType) {
			http_request.overrideMimeType('text/xml');
		}
	} 
	else if (window.ActiveXObject) { // IE浏览器下
		try {
			http_request = new ActiveXObject("Msxml2.XMLHTTP"); //新建Msxml2.XMLHTTP控件对象
			http_request.setrequestheader("content-type","application/x-www-form-urlencoded; charset=utf-8"); //设定内容的编码形式
		} catch (e) {
			try {
				http_request = new ActiveXObject("Microsoft.XMLHTTP"); //新建Microsoft.XMLHTTP控件对象,该控件作用为获取指定URL的内容

			} catch (e) {}
		}
	}

	if (!http_request) {
		document.all.shuaxinshow.innerHTML = '无法重新获得回复信息....'; //程序触发时,提示语
		return false;
	}
	http_request.onreadystatechange = alertContents;
	http_request.open('GET', url, true);
	http_request.send(null);
}

function alertContents() {
	if (http_request.readyState == 4) {
		if (http_request.status == 200) {
			var alertmsg = http_request.responseText //定义alertmsg 变量为获取指定URL的值
			if ( alertmsg.indexOf("no") != -1 )
			{
				//document.all.shuaxinshow.innerHTML = '...请先 <a href=/Admin/UserLogin.asp><font color=red>登录</font></a> 网站...';
				logindiv()
			}
			else
			{			
				document.all.shuaxin.innerHTML = alertmsg;
				document.all.shuaxinshow.innerHTML = '';
				document.all.content.innerHTML = '';
			}
		} 
		else {
			document.all.shuaxinshow.innerHTML = '组件装载失败...';//未知错误处理
		}
	}

}