// JScript 文件
var xmlHttp;
function memberName()////系别编号
{
  var userN=document.getElementById("userName").value;
  getHttp();
  var url="checkAjax.aspx?userName="+userN+"&events=userName";
  xmlHttp.Open("GET",url,true);
  xmlHttp.onreadystatechange=checkNum;
  xmlHttp.send(null);
}

function getHttp()////创建XMLHttpRequest对像
 {
   if(window.XMLHttpRequest)
   {
      xmlHttp=new XMLHttpRequest();
   }
   else if(window.ActiveXObject)
   {
       try
        {
          xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
        }
       catch(e)
        {}
       try
       {
         xmlHttp=new ActiveXObject("microsoft.XMLHTTP");
       }
      catch(e)
       {}
     if(!xmlHttp)
       {
         window.alert("XMLHttpRequest对象实例创建失败！");
         return false;
       }
   }
//if(window.XMLHttpRequest){
//xmlHttp = new XMLHttpRequest();
//if (xmlHttp.overrideMimeType) {
//xmlHttp.overrideMimeType("text/xml");
//}
//}
//else if (window.ActiveXObject){
//try {
//xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
//} catch (e) {
//try {
//xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
//} catch (e) {}
//}
//}
  }

function checkNum()////显示或隐藏提示框1
{
 if(xmlHttp.readyState==4)
  {
   if(xmlHttp.status==200)
    {
     if(xmlHttp.responseText=="false")
       {
         document.getElementById("message1").style.display="";
         document.getElementById("message2").style.display="none";
         document.getElementById("userName").value="";
       }
       else
       {
         document.getElementById("message1").style.display="none";
         document.getElementById("message2").style.display="";
       }
    }
  }
 }

//function checkNumber()////检测是否为数值型
//{
//  if(event.keyCode<45||event.keyCode>57)
//  {
//    alert('请输入数值型！');
//    event.keyCode=0;
////  }
////}