function popupVisite(){
	sw=Math.round((screen.availWidth-553)/2);
	sh=Math.round((screen.availHeight-415)/2);
	window.open ('popup-visite-guidee.php', '', config='width=553, height=415, top='+sh+', left='+sw+', toolbar=no, menubar=no, scrollbars=no, resizable=no, location=no, directories=no, status=no')
}
function popupPlan(){
	sw=Math.round((screen.availWidth-547)/2);
	sh=Math.round((screen.availHeight-478)/2);
	window.open ('popup-plan-acces.php', '', config='width=547, height=478, top='+sh+', left='+sw+', toolbar=no, menubar=no, scrollbars=no, resizable=no, location=no, directories=no, status=no')
}
function expandIt(whichEl){
    whichEl.style.display = (whichEl.style.display == "none" ) ? "inline" : "none";
}
function enConstruction(lang){
	if(lang=="de"){
		alert("Under Konstruktion.");
	}
	if(lang=="en"){
		alert("Under construction.");
	}
}