function verstecken(id) { 
	document.getElementById(id).style.display = "none"; 
}
function zeigen(id) { 
	document.getElementById(id).style.display = ""; 
}

function sichtbarkeit_aendern(id) {
	if (document.getElementById(id).style.display == "none") {
		zeigen(id);
		} else {
		verstecken(id);
	}
}




function email(name, domain,tld) {
	var link = "<a href='mailto:"+name+"@"+domain+"."+tld+"' >";
	document.write(link);
}

function emailschliessen() {
	document.write("</a>");
}






function zeigen_OLD(id) { 
	document.getElementById(id).style.display = ""; 
	window.scrollTo(1,document.getElementById(id).offsetTop+50);
}

function sichtbarkeit_aendern_OLD(id) {
	if (document.getElementById(id).style.display == "none") {
		zeigen(id);
		
		if (id == "thirdnav") {
			window.addEvent('domready', function() {
				new Fx.Scroll(window, {
				wait: false,
				duration: 800,
				offset: {'x': 0, 'y': 0},
				transition: Fx.Transitions.Quad.easeInOut
			}).toElement($('thirdnav'));
			});
		}
	} else {
		verstecken(id);
	}
}