function show(element) {
	for (var i=1; i<=20; i++) {
		var hidespan = "ort"+i;
		document.getElementById(hidespan).className = 'off';
	}
	document.getElementById(element).className = 'on';
}

function sticky(adresse) {
	document.getElementById(adresse).className = 'hold';
}
function unsticky(element) {
	for (var i=1; i<=20; i++) {
		var hidespan = "adresse"+i;
		if (hidespan != element) {
                     document.getElementById(hidespan).className = 'hide';
		}
	}
}

function hide(element) {
	document.getElementById(element).className = 'off';
}

function hideall(element) {
	for (var i=1; i<=20; i++) {
		var hidespan = "ort"+i;
		if (hidespan != element) {
		}
	}
}