function alertEmailPassword() {
     if (http_request.readyState == 4)
  {
         //   alert('state '+self.http_request.readyState);
         //  alert('format '+self.http_request.status);
          //  alert(self.http_request.status);
      if (http_request.status >= 200 && http_request.status <= 299)
      {
            result = http_request.responseText;
            alert(result);
              if(result == "bad password")
              {
                 javascript:ajaxpage('login_invalid.php', 'content');
                 return;
              }
                if(result == "bad username")
              {
                 javascript:ajaxpage('new_user.php', 'content');
                 return;
              }

             document.getElementById('welcome').innerHTML = "Welcome: "+ result;
             javascript:ajaxpage('home.html', 'content');
             return;
       }
      else
      {
          alert('There was a problem with the request. '+http_request.status);
      }
  }
}

function alertLogin() {
     if (http_request.readyState == 4)
  {
         //   alert('state '+self.http_request.readyState);
         //  alert('format '+self.http_request.status);
          //  alert(self.http_request.status);
      if (http_request.status >= 200 && http_request.status <= 299)
      {
            result = http_request.responseText;
              if(result == "bad password")
              {
                 javascript:ajaxpage('login_invalid.php', 'content');
                 return;
              }
                if(result == "bad username")
              {
                 javascript:ajaxpage('new_user.php', 'content');
                 return;
              }

             document.getElementById('welcome').innerHTML = "Welcome: "+ result + "  <input type=\"button\" name=\"submit\" value=\"User Prefs\" onclick=\"javascript:ajaxpage('user_prefs.php', 'content');\">";
             javascript:ajaxpage('home.html', 'content');
             return;
       }
      else
      {
          alert('There was a problem with the request. '+http_request.status);
      }
  }
}

//******************************************************************
function RegisterCallback() {
     if (http_request.readyState == 4)
  {
         //   alert('state '+self.http_request.readyState);
         //  alert('format '+self.http_request.status);
          //  alert(self.http_request.status);
      if (http_request.status >= 200 && http_request.status <= 299)
      {
            result = http_request.responseText;
            alert(result);
              if( result.match("bad password") != null)
              {
                 javascript:ajaxpage('login_invalid.php', 'content');
                 return;
              }
              if( result.match("bad username")  != null)
              {
                 javascript:ajaxpage('new_user.php', 'content');
                 return;
              }
              if( result.match("already")  != null)
              {
                alert(result);
                  document.getElementById('content').innerHTML =  result;
                 return;
              }
             document.getElementById('welcome').innerHTML = "Welcome: "+ result;
             javascript:ajaxpage('home.html', 'content');
             return;
       }
      else
      {
          alert('There was a problem with the request. '+http_request.status);
      }
  }
}