String.prototype.rot13 = function(){ //v1.0
	return this.replace(/[a-zA-Z]/g, function(c){return String.fromCharCode((c <= "Z" ? 90 : 122) >= (c = c.charCodeAt(0) + 13) ? c : c - 26);});
};

function toggle(divID, more, less){
	var div = document.getElementById(divID);
	var link = document.getElementById(divID+'_link');
//	alert(div.style.display+"\n"+link.innerHTML);
	if (div.style.display != 'block') {
		div.style.display = 'block';
		link.innerHTML = 'weniger';
		if(less) link.innerHTML = less;
	} else {
		div.style.display = 'none';
		link.innerHTML = 'mehr';
		if(more) link.innerHTML = more;
	}
}