// hide all div
function hideAll() {
document.getElementById("home").style.visibility = "hidden";
document.getElementById("about").style.visibility = "hidden";
document.getElementById("diler").style.visibility = "hidden";
document.getElementById("dokument").style.visibility = "hidden";
document.getElementById("info").style.visibility = "hidden";
document.getElementById("vo").style.visibility = "hidden";
document.getElementById("contacts").style.visibility = "hidden";
document.getElementById("uslugi").style.visibility = "hidden";
}
// show div
function show(divId) {
hideAll();
document.getElementById(divId).style.visibility = "visible";
}
// hide div
function hide(divId) {
document.getElementById(divId).style.visibility = "hidden";
}

//-->