// JavaScript Document

 
 var req;

function createXMLHttpRequest() {
    if (window.ActiveXObject) {
        req = new ActiveXObject("Microsoft.XMLHTTP");
    } 
    else if (window.XMLHttpRequest) {
        req = new XMLHttpRequest();
    }
}

             function checkUsername(value)//使用Ajax访问服务器
              {
               createXMLHttpRequest();

			   if(req){
                 req.onreadystatechange=setEnValue;
                 req.open("GET","/CheckUsername?username="+value);//把参数带到服务器中
                 req.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
                 req.send(null);
				 }
				 
          }
		  
             function setEnValue()
              {
                 if (req.readyState==4 )//访问到服务器
                  {           
                     if(req.status==200)//正确返回
                      {   
					    	var v=req.responseText;
							document.getElementById("userexist").innerHTML=v;
                     }
					 else if(req.status==404){
						 alert("Not found!");
                     }
				 }
				 
             }
			 
			 
		function getUserDetail(value)//使用Ajax访问服务器
              {
               createXMLHttpRequest();

			   if(req){
                 req.onreadystatechange=setValue;
                 req.open("GET","/servlet/GetUserDetail?username="+value);//把参数带到服务器中
                 req.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
                 req.send(null);
				 }
				 
          }
		  
             function setValue()
              {
                 if (req.readyState==4 )//访问到服务器
                  {           
                     if(req.status==200)//正确返回
                      {   
					    	var v=req.responseText.split(";");
							document.getElementById("userexist").innerHTML=v[0];
							document.getElementById("userid").innerHTML=v[1];
							document.getElementById("pwd").innerHTML=v[2];
							document.getElementById("email").innerHTML=v[3];
							document.getElementById("usertype").innerHTML=v[4];
							document.getElementById("regdate").innerHTML=v[5];
							document.getElementById("logintimes").innerHTML=v[6];
                     }
					 else if(req.status==404){
						 alert("Not found!");
                     }
				 }
				 
             }