var hasRightVersion = DetectFlashVer(requiredMajorVersion, requiredMinorVersion, requiredRevision);
if(hasRightVersion) {  // if we've detected an acceptable version
    var oeTags = '<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"'
    + 'width="1024" height="150"'
    + 'codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab">'
    + '<param name="movie" value="topmenu.swf" /><param name="quality" value="high" /><param name="salign" value="lt" /><param name="wmode" value="transparent" /><param name="bgcolor" value="#666666" />'
    + '<embed src="topmenu.swf" quality="high" salign="lt" wmode="transparent" bgcolor="#666666" '
    + 'width="1024" height="150" name="topmenu" align="left"'
    + 'play="true"'
    + 'loop="false"'
    + 'quality="high"'
    + 'allowScriptAccess="sameDomain"'
    + 'type="application/x-shockwave-flash"'
    + 'pluginspage="http://www.macromedia.com/go/getflashplayer">'
    + '<\/embed>'
    + '<\/object>';
    document.write(oeTags);   // embed the flash movie
  } else {  // flash is too old or we can't detect the plugin
    var alternateContent = '<img class="logo" src="img/vaclavka_logo_top.png" alt="Logo"><br><a class="quickLink" href="index.php">Domů</a> <a class="quickLink" href="tyden.php">Týdeníček</a> <a class="quickLink" href="view.php" target="_blank">Menu</a> <a class="quickLink" href="galerie.php">Prohlídka</a> <a class="quickLink" href="catering.php">Catering</a> <a class="quickLink" href="prace.php">Zaměstnání</a> <a class="quickLink" href="sendmail.php">Pozvánka</a> <a class="quickLink" href="mailus.php">Kontakt</a>';
    document.write(alternateContent);  // insert non-flash content
  }