function LoginButton()
{
  var isLoggedIn;
  var re = /userid=[0-9]+/i;
  //window.alert(document.cookie);
  
  isLoggedIn = (document.cookie.search(re) != -1);
  
  if( isLoggedIn ) {
    document.write('<a href="/applications/Login/Logout.cfm"><img src="/images/btn_logout.gif" width="129" height="18" alt="Logout" border="0"></a>');
  }
  else {
    document.write('<a href="/applications/Login/Login.cfm"><img src="/images/btn_login.gif" width="129" height="18" alt="Login" border="0"></a>');
  }
}