if (navigator.appName == "Netscape" && parseInt(navigator.appVersion) >= 3) browser=1;
else if (navigator.appName == "Microsoft Internet Explorer" && parseInt(navigator.appVersion) >= 3) browser=1;
else browser=0;
preloading = ""
kleur = ""
if (browser==1){
	een_over = new Image();
    een_over.src = "http://www.serco-nedrailways.com/assets/menu-01-over.gif";
    twee_over = new Image();
    twee_over.src = "http://www.serco-nedrailways.com/assets/menu-02-over.gif";
	drie_over = new Image();
    drie_over.src = "http://www.serco-nedrailways.com/assets/menu-03-over.gif";
	vier_over = new Image();
    vier_over.src = "http://www.serco-nedrailways.com/assets/menu-04-over.gif";
	vijf_over = new Image();
    vijf_over.src = "http://www.serco-nedrailways.com/assets/menu-05-over.gif";
	zes_over = new Image();
    zes_over.src = "http://www.serco-nedrailways.com/assets/menu-06-over.gif";
	zeven_over = new Image();
    zeven_over.src = "http://www.serco-nedrailways.com/assets/menu-07-over.gif";
	een_uit = new Image();
    een_uit.src = "http://www.serco-nedrailways.com/assets/menu-01-uit.gif";
    twee_uit = new Image();
    twee_uit.src = "http://www.serco-nedrailways.com/assets/menu-02-uit.gif";
	drie_uit = new Image();
    drie_uit.src = "http://www.serco-nedrailways.com/assets/menu-03-uit.gif";
	vier_uit = new Image();
    vier_uit.src = "http://www.serco-nedrailways.com/assets/menu-04-uit.gif";
	vijf_uit = new Image();
    vijf_uit.src = "http://www.serco-nedrailways.com/assets/menu-05-uit.gif";
	zes_uit = new Image();
    zes_uit.src = "http://www.serco-nedrailways.com/assets/menu-06-uit.gif";
	zeven_uit = new Image();
    zeven_uit.src = "http://www.serco-nedrailways.com/assets/menu-07-uit.gif";
	een_aan = new Image();
    een_aan.src = "http://www.serco-nedrailways.com/assets/menu-01-aan.gif";
    twee_aan = new Image();
    twee_aan.src = "http://www.serco-nedrailways.com/assets/menu-02-aan.gif";
	drie_aan = new Image();
    drie_aan.src = "http://www.serco-nedrailways.com/assets/menu-03-aan.gif";
	vier_aan = new Image();
    vier_aan.src = "http://www.serco-nedrailways.com/assets/menu-04-aan.gif";
	vijf_aan = new Image();
    vijf_aan.src = "http://www.serco-nedrailways.com/assets/menu-05-aan.gif";
	zes_aan = new Image();
    zes_aan.src = "http://www.serco-nedrailways.com/assets/menu-06-aan.gif";
	zeven_aan = new Image();
    zeven_aan.src = "http://www.serco-nedrailways.com/assets/menu-07-aan.gif";
    preloading = "ready"
}
if (browser==0){
}
function displayon (Name,tekst){
        if (browser==1){
        if (kleur != Name){
        if (preloading == "ready")document [Name].src = eval(tekst + ".src");
        }
        }
}
function displayoff (Name,tekst){
        if (browser==1){
        if (preloading == "ready")document [Name].src = eval(tekst + ".src");
        }
}
function resetset (Name,tekst){
  if (browser==1){
        displayoff ('een_uit', 'een_uit');
        displayoff ('twee_uit', 'twee_uit');
		displayoff ('drie_uit', 'drie_uit');
		displayoff ('vier_uit', 'vier_uit');
		displayoff ('vijf_uit', 'vijf_uit');
		displayoff ('zes_uit', 'zes_uit');
		displayoff ('zeven_uit', 'zeven_uit');
        if (preloading == "ready")document [Name].src = eval(tekst + ".src");
        kleur = Name
   } 
}