bname=''
function swap(bname,URL)
{
document.getElementbyName(bname).src = "image/navbox_b.jpg";
}


Hilfsvariable = '';
function togdis(identi) {
 	var Ziel = document.getElementById(identi);
  	if(Ziel.style.display == 'none') {
	Ziel.style.display = Hilfsvariable;
	 } else {
	Hilfsvariable = Ziel.style.display;
	Ziel.style.display = 'none';
	}
  }