var xmlHttp
function showCustomer(str)
{ 
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
  {
  alert ("您的浏览器不支持AJAX！");
  return;
  } 
var url="urlzfjc.asp";
url=url+"?lx="+str;
xmlHttp.onreadystatechange=stateChanged;
xmlHttp.open("GET",url,true);
xmlHttp.send(null);
}

function stateChanged()
{ 
if (xmlHttp.readyState==4)
{ 
 if (xmlHttp.responseText=="yes")
 {alert ("该用户已经注册了，请重新输入！"); document.f1.ym.focus();}
}
}

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 Jche1()
{    
   if(document.f1.pass1.value.length<6) {
	document.f1.pass1.focus();
    alert("对不起，请密码小于6位！");
	return false;
  } }
  
function Jche2()
{    
   if(document.f1.pass1.value!=document.f1.pass2.value) {
	document.f1.pass2.focus();
    alert("对不起，两次输入密码不同！");
	return false;
  } }

function Jche3()
{    
 if(document.f1.email.value.length!=0)
  {
    if (document.f1.email.value.charAt(0)=="." ||        
         document.f1.email.value.charAt(0)=="@"||       
         document.f1.email.value.indexOf('@', 0) == -1 || 
         document.f1.email.value.indexOf('.', 0) == -1 || 
         document.f1.email.value.lastIndexOf("@")==document.f1.email.value.length-1 || 
         document.f1.email.value.lastIndexOf(".")==document.f1.email.value.length-1)
     {
      alert("Email地址格式不正确！");
      document.f1.email.focus();
      return false;
      }
   }
 else
  {
   alert("Email不能为空！");
   document.f1.email.focus();
   return false;
   }
}

function checkspace(checkstr) {
  var str = '';
  for(i = 0; i < checkstr.length; i++) {
    str = str + ' ';
  }
  return (str == checkstr);
}


function Jche4()
{    
   if(document.f1.dz.value.length<3||document.f1.dz.value=="http://") {
	document.f1.dz.focus();
    alert("对不起，输入转发地址，请以http://开头！");
	return false;
  } }
  
 function csub()
{  
   if(document.f1.ym.value.length<1) {
	document.f1.ym.focus();
    alert("对不起，请输入二级域名！");
	return false;
  }
return Jche1();
return Jche2();
return Jche4();
return Jche3();
}