var xmlHttp
//**************************************************************会员登录验证***********************************************//
function denglu(use,pw)
{
    if(use=='')
   {
        alert("用户名不能为空！")
        document.getElementById('use').focus();
        return false;
	}
	if(pw=='')
   {
       alert("密码不能为空！")
	   document.getElementById('pw').focus();
       return false;
	}
	
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
  {
  alert ("Browser does not support HTTP Request")
  return
  } 
var url="checklogin.php"
url=url+"?username="+use+"&password="+pw
url=url+"&sid="+Math.random()
//alert(url);
xmlHttp.onreadystatechange=stateChanged 
xmlHttp.open("GET",url,true)
xmlHttp.send(null)
} 

function stateChanged() 
{ 

if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
 { 
 if(xmlHttp.responseText=='2')
 {
	 alert("对不起，您的密码不正确！！")
	/* document.getElementById('use').value="";
	 document.getElementById('pw').value="";
	 document.getElementById('use').focus();
	 return false;*/
	 window.location.href='denglu.php';
	 }else if(xmlHttp.responseText=='1')
	 {
	 alert("对不起，您的密码不正确！")
	// document.getElementById('use').value="";
	 document.getElementById('pw').value="";
	 document.getElementById('pw').focus();
	 }else{
	// tt="&nbsp;&nbsp;&nbsp;欢迎会员&nbsp;"+xmlHttp.responseText+"&nbsp;<a href='logout.php'><font color='#FFFFFF'>退出</font></a>";
    // document.getElementById("denglu").innerHTML=tt
	alert("登录成功！")
	window.location.href='index.php';
	 }
 } 
}

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;
}
//**************************************************************检查用户是否被注册***********************************************//
function check_name(u_name)
{
    if(u_name=='')
   {
        alert("用户名不能为空！")
        document.getElementById('u_name').focus();
        return false;
	}
	
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
  {
  alert ("Browser does not support HTTP Request")
  return
  } 
var url="checkname.php"
url=url+"?username="+u_name
url=url+"&sid="+Math.random()
xmlHttp.onreadystatechange=name_stateChanged 
xmlHttp.open("GET",url,true)
xmlHttp.send(null)
} 

function name_stateChanged() 
{ 
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
 { 
  
 if(xmlHttp.responseText=='0')
   {
	document.getElementById("checkname").innerHTML="<font color='#FF0000'>(*用户名已经被注册，请选择其它用户名！)</font>";
   }else {
	   document.getElementById("checkname").innerHTML="<font color='#FF0000'>(*用户名可以使用！)</font>";
	   }
  
 } 
}
//**************************************************************各地分站的验证***********************************************//
function check_fengzhan(province)
{
    if(province=='')
   {
        alert("分站名称不能为空！")
        document.getElementById('province').focus();
        return false;
	}
	
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
  {
  alert ("Browser does not support HTTP Request")
  return
  } 
var url="checkprovince.php"
url=url+"?province="+province
//alert(url);
url=url+"&sid="+Math.random()
xmlHttp.onreadystatechange=province_stateChanged 
xmlHttp.open("GET",url,true)
xmlHttp.send(null)
} 

function province_stateChanged() 
{ 
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
 { 
 //alert(xmlHttp.responseText)
 if(xmlHttp.responseText=='2')
   {
	document.getElementById("checkprovince").innerHTML="<font color='#FF0000'>(*分站已经被填写！)</font>";
   }else{
	   document.getElementById("checkprovince").innerHTML="<font color='#FF0000'>(*分站还未被填写！)</font>";
	   }
 } 
}