function cookiesAreEnabled() {
  SetCookie( "foo", "bar" );
  if ( GetCookie( "foo" ) ) {
    DeleteCookie( "foo" );
    return true;
  } else {
    return false;
  }
}

function GetCookie( name ) {
  var arg = name + "=";
  var alen = arg.length;
  var clen = document.cookie.length;
  var i = 0;
  while ( i < clen ) {
    var j = i + alen;
    if ( document.cookie.substring(i, j) == arg ) return getCookieVal(j);
    i = document.cookie.indexOf( " ", i ) + 1;
    if ( i == 0 ) break;
  }
  return null;
}

function DeleteCookie( name, path, domain ) {
  if ( GetCookie( name ) ) {
    document.cookie = name + "=" +
    ( ( path ) ? "; path=" + path : "" ) +
    ( ( domain ) ? "; domain=" + domain : "" ) +
    "; expires=Thu, 01-Jan-70 00:00:01 GMT";
  }
}

function SetCookie( name, value, expires, path, domain, secure ) {
  document.cookie = name + "=" + escape (value) +
  ( ( expires ) ? "; expires=" + expires.toGMTString() : "" ) +
  ( ( path ) ? "; path=" + path : "" ) +
  ( ( domain ) ? "; domain=" + domain : "" ) +
  ( ( secure ) ? "; secure" : "" );
}

function getCookieVal( offset ) {
  var endstr = document.cookie.indexOf ( ";", offset );
  if ( endstr == -1 ) endstr = document.cookie.length;
  return unescape( document.cookie.substring( offset, endstr ) );
}

if (!cookiesAreEnabled()) {
      msg = "Cookies are not enabled on this browser! ";
      msg += "Please enable cookies in your browser in order to login to www.speedcams.eu. You will not be able to access systems requiring authentication if your cookies are disabled.";
      window.alert( msg );
}