var ensubmit=1;
var msgs;
var code;
var msg;
function check_username(name,value)
{
  xmlHttp=GetXmlHttpObject()
  
  if (xmlHttp==null)
  {
	 alert ("您的浏览器不支持AJAX！");
		return;
  }

	var url="check.php";
	url = url + "?name="+name+"&value="+value;
	url = url+"&time="+Math.random();
	xmlHttp.onreadystatechange=cb_username;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
}


function check_pwd(name,value)
{
 xmlHttp=GetXmlHttpObject()
  
  if (xmlHttp==null)
  {
	 alert ("您的浏览器不支持AJAX！");
		return;
  }

	var url="check.php";
	url = url + "?name="+name+"&value="+value;
	url = url+"&time="+Math.random();
	xmlHttp.onreadystatechange=cb_pwd;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
}

function check_repwd(p2)
{
    var p1 = document.getElementById("pwd").value;
    if(p1 != p2 || !p2){
        document.getElementById("repwd_hits").innerHTML="两次输入的密码不一致！";
    }else{
        document.getElementById("repwd_hits").innerHTML="<img src='/images/reg_info_success.gif'/>";
    }
}



function check_email(name,value)
{
  xmlHttp=GetXmlHttpObject()
  
  if (xmlHttp==null)
  {
	 alert ("您的浏览器不支持AJAX！");
		return;
  }

	var url="check.php";
	url = url + "?name="+name+"&value="+value;
	url = url+"&time="+Math.random();
	xmlHttp.onreadystatechange=cb_email;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
}




function GetXmlHttpObject()
{
  var xmlHttp=null;
  try{
    // Firefox, Opera 8.0+, Safari
		xmlHttp=new XMLHttpRequest();
  }catch (e){
    // Internet Explorer
    try
      {xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");}
    catch (e)
      {xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");}
    }
  return xmlHttp;
}

function cb_username() 
{ 

  if (xmlHttp.readyState==4)
  { 
		msgs = xmlHttp.responseText;
		var js = eval("("+msgs+")");
		if(js.code==1){
		  document.getElementById("jigou_hou").innerHTML = "<img src='/images/reg_info_success.gif'/>";
		}else if(js.code==0){
		  document.getElementById("jigou_hou").innerHTML = js.msg;
		}
		ensubmit = parseInt(js.code);
		return ;
		
  }
}

function cb_email() 
{ 

  if (xmlHttp.readyState==4)
  { 
		msgs = xmlHttp.responseText;
		var js = eval("("+msgs+")");
		if(js.code==1){
		  document.getElementById("email_hits").innerHTML =  "<img src='/images/reg_info_success.gif'/>";
		}else if(js.code==0){
		  document.getElementById("email_hits").innerHTML = js.msg;		  
		}
		ensubmit = parseInt(js.code);
		return ;
  }
}

function cb_pwd() 
{ 

  if (xmlHttp.readyState==4)
  { 
		msgs = xmlHttp.responseText;
		var js = eval("("+msgs+")");
		if(js.code==1){
		  document.getElementById("pwd_hits").innerHTML = "<img src='/images/reg_info_success.gif'/>";  
		}else if(js.code==0){
		  document.getElementById("pwd_hits").innerHTML = js.msg;  	  
		}
		return ;
  }
}


function check_all(){
  var username = document.getElementById("username").value;
  var pwd = document.getElementById("pwd").value;
  var repwd = document.getElementById("repwd").value;
  var email = document.getElementById("email").value;
  if(!username) {
  	document.getElementById("jigou_hou").innerHTML = '用户名不能为空';
	ensubmit = 0;
  }
  if(!pwd) {
	document.getElementById("pwd_hits").innerHTML = '密码不能为空';
  	ensubmit = 0;
  }
  if(!repwd) {
	  document.getElementById("repwd_hits").innerHTML = '请再次输入密码';
  	  ensubmit = 0;
  }
   if(repwd != pwd) {
	  document.getElementById("repwd_hits").innerHTML = '两次密码不一致';
  	  ensubmit = 0;
  }
  
  
  if(!email) {
	  document.getElementById("email_hits").innerHTML = '邮箱不能为空';
  	  ensubmit = 0;
  }
  return ensubmit == 0 ? false : true ;
}