function do_visible(value){
document.getElementById('tlacitka').style.visibility=value;
document.getElementById('logo').style.visibility=value;
if (document.getElementById('nabidkazamestnani')) {
document.getElementById('nabidkazamestnani').style.visibility=value;
}

if (document.getElementById('profesedetail')){
document.getElementById('profesedetail').style.visibility=value;
}

document.getElementById('kontakt').style.visibility=value;
document.getElementById('paneria_kontakt').style.visibility=value;
document.getElementById('odkolek_kontakt').style.visibility=value;
document.getElementById('mrbacker_kontakt').style.visibility=value;
document.getElementById('validxhtml').style.visibility=value;

}

function bungee_down () {
do_visible("hidden");
document.getElementById('hlavnitabulka').style.top="-180px";
window.setTimeout("document.getElementById('hlavnitabulka').style.top='-100px';",1010);
window.setTimeout("document.getElementById('hlavnitabulka').style.top='-90px';",1020);
window.setTimeout("document.getElementById('hlavnitabulka').style.top='-80px';",1030);
window.setTimeout("document.getElementById('hlavnitabulka').style.top='-70px';",1040);
window.setTimeout("document.getElementById('hlavnitabulka').style.top='-60px';",1050);
window.setTimeout("document.getElementById('hlavnitabulka').style.top='-50px';",1060);
window.setTimeout("document.getElementById('hlavnitabulka').style.top='-40px';",1070);
window.setTimeout("document.getElementById('hlavnitabulka').style.top='-30px';",1080);
window.setTimeout("document.getElementById('hlavnitabulka').style.top='-20px';",1090);
window.setTimeout("document.getElementById('hlavnitabulka').style.top='-10px';",1100);
window.setTimeout("document.getElementById('hlavnitabulka').style.top='0px'; do_visible('visible'); ",1110);
}