function multiuser(vecuporabniski)
  {
    if (vecuporabniski == '1')
      {
        document.getElementById("loginOzadje").style.display = "none";
        document.getElementById("loginVecuporabniskiOzadje").style.display = "block";
        document.getElementById('organization').focus();
				document.getElementById('m_res_x').value = screen.width;
				document.getElementById('m_res_y').value = screen.height;
      }
    if (vecuporabniski == '0')
      {
        document.getElementById("loginVecuporabniskiOzadje").style.display = "none";
        document.getElementById("loginOzadje").style.display = "block";
        document.getElementById('username').focus();
				document.getElementById('res_x').value = screen.width;
				document.getElementById('res_y').value = screen.height;
      }
  }