function showDiv(obj) {
        hideDiv();
        document.getElementById(obj).style.visibility = "visible";
    }

function showDiv2(obj) {
        document.getElementById(obj).style.visibility = "visible";
    }
    
            
function hideDiv() {
        document.getElementById("hotel").style.visibility = "hidden";
        document.getElementById("angebote").style.visibility = "hidden";
        document.getElementById("wellness").style.visibility = "hidden";
        document.getElementById("gourmet").style.visibility = "hidden";
        document.getElementById("rooms").style.visibility = "hidden";
        document.getElementById("categories").style.visibility = "hidden";
        document.getElementById("nature").style.visibility = "hidden";
    

        
            }