document.writeln('')
document.writeln('')
document.writeln('')
document.writeln('')
document.writeln('通行证')
document.writeln('')
document.writeln('')
document.writeln('')
function Checkform(theform){
if (theform.username.value=="") {
alert("请输入您的用户名！");
theform.username.focus();
return false;
}
if (theform.password.value=="") {
alert("请输入您的密码！");
theform.password.focus();
return false;
}
if (theform.usertype.value=="") {
alert("请选择您会员的类型！");
theform.usertype.focus();
return false;
}
return (true);
}
document.writeln('');
document.writeln('
')
document.writeln('