function RegUserInfo(un,up)
{
//获取接受返回信息层
var userName = un;
var userPassword  = up;
//接收表单的URL地址
var url = "http://www.datihu.com/remoteuserlogin/remoteuserlogin.aspx";
//需要POST的值，把每个变量都通过&来联接
var postStr   = "user_name="+ userName +"&user_password="+ userPassword;
//实例化Ajax
//var ajax = InitAjax();

          var ajax = false;
         //开始初始化XMLHttpRequest对象
         if(window.XMLHttpRequest) { //Mozilla 浏览器
                 ajax = new XMLHttpRequest();
                 if (ajax.overrideMimeType) {//设置MiME类别
                         ajax.overrideMimeType("text/xml");
                 }
         }
         else if (window.ActiveXObject) { // IE浏览器
                 try {
                         ajax = new ActiveXObject("Msxml2.XMLHTTP");
                 } catch (e) {
                         try {
                                 ajax = new ActiveXObject("Microsoft.XMLHTTP");
                         } catch (e) {}
                 }
         }
         if (!ajax) { // 异常，创建对象实例失败
                 window.alert("不能创建XMLHttpRequest对象实例.");
                 return false;
         }
                
                
                
//通过Post方式打开连接
ajax.open("POST", url, true);
//定义传输的文件HTTP头信息
ajax.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8"); 
//发送POST数据
ajax.send(postStr);
//获取执行状态
ajax.onreadystatechange = function () { 
   //如果执行状态成功，那么就把返回信息写到指定的层里
   if (ajax.readyState == 4 && ajax.status == 200) { 
	    if(ajax.responseText=='1')
	    {
	     showdiv(true);
	    }
	     else
	    {
	      window.location="http://user.datihu.com/webpage/Login.aspx";
	    }
   }
} 
}