function activateMenu(id) {
    document.getElementById(id).className = "temp-buta";
}
function activateSideMenu(id) {
    document.getElementById(id).className = "sliding-element2";
}
function activateHome(id) {
    document.getElementById(id).className = "home-but1";
}
function activateSideTab(id) {
    document.getElementById(id).className = "side-curve24";
}