<!--


var aktives_menu = '';

function popup(neues_menu)
{
	if (neues_menu == 'none')
	{
         if (aktives_menu != '')
		 {
		 	if (document.layers) {
			 	document.layers[aktives_menu].visibility    = "hide";
			} else if (document.getElementById) {
				document.getElementById(aktives_menu).style.visibility = "hidden";
			}
            else     { document.all[aktives_menu].style.visibility = "hidden"; }
            aktives_menu = '';
         }
    }
	else
	{
     	if (aktives_menu != '')
		{
        	if (document.layers) {
				document.layers[aktives_menu].visibility    = "hide";
			} else if (document.getElementById) {
				document.getElementById(aktives_menu).style.visibility = "hidden";
			}
            else     { document.all[aktives_menu].style.visibility = "hidden"; }
        }
        aktives_menu = neues_menu;
     	if (document.layers) {
			document.layers[neues_menu].visibility      = "show";
		}  else if (document.getElementById) {
			document.getElementById(aktives_menu).style.visibility = "visible";
       	} else     { document.all[neues_menu].style.visibility   = "visible"; }
    }
}


//-->