function check()
  {
  i = document.getElementById("i").value;
  p = document.getElementById("p");
  password = document.getElementById("password").value;
  k = hex_md5(i + password);
  p.value = k;
  document.getElementById("privateform").submit();
  }

function logoff()
  {
  document.cookie = 'i=; expires=Fri, 27 Jul 2001 02:47:11 UTC; path=/'
  document.getElementById("privateform").submit();
  }