function initMainPage() {
    setMenuHandler("#mi-sportclub", "#menu-sportclub");
    setMenuHandler("#mi-ricochet", "#menu-ricochet");
    setMenuHandler("#mi-bowling", "#menu-bowling");
    setMenuHandler("#mi-online", "#menu-online");

}


function setMenuHandler(source, dest) {
    $(source).click(
      function() {
          var msc = $(dest);
          if (msc.is(':visible')) {
              msc.fadeOut(500);
          }
          else {
              $(".submenu").fadeOut(500);
              msc.fadeIn(500);
          }
      });
}