function showlayer(layer, elementclick){
    var myLayer = document.getElementById(layer).style.display;
    if (myLayer=="none"){
        document.getElementById(layer).style.display="block";
        document.getElementById(layer).style.visibility="visible";
        document.getElementById(elementclick).setAttribute("class", "itemlistup");
        
    } else {
        document.getElementById(layer).style.display="none";
        document.getElementById(layer).style.visibility="hidden";
        document.getElementById(elementclick).setAttribute("class", "itemlist");
    }
}


function showlayerHotels(layer, elementclick){
    var myLayer = document.getElementById(layer).style.display;
    if(myLayer=="none"){
        document.getElementById(layer).style.display="block";
        document.getElementById(layer).style.visibility="visible";
        document.getElementById(elementclick).setAttribute("class", "itemlistup");
        
    } else {
        document.getElementById(layer).style.display="none";
        document.getElementById(layer).style.visibility="hidden";
        document.getElementById(elementclick).setAttribute("class", "itemlisthotel");
    }
}