function popupWindow(url) {
  window.open(url,'popupWindow','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,copyhistory=no,width=100,height=100,screenX=150,screenY=150,top=150,left=150')
}  



// Funktion zur Referenzierung von Div-Layern
function div_ref (id) {
	if      (document.layers)         return document.layers[id];         // NC 4
	else if (document.all)            return document.all[id];            // IE 4
	else if (document.getElementById) return document.getElementById(id); // DOM
	else                              return null;        
}

// Funktion zur Referenzierung von Div-Layern mit Zugriff auf CSS-Eigenschaften
function div_ref_style (id) {
	if      (document.layers)         return document.layers[id];              
	else if (document.all)            return document.all[id].style;           
	else if (document.getElementById) return document.getElementById(id).style;
	else                              return null;        
}

// Funktion zum Zeigen und Verstecken von Div-Layern
function show_hide (id,stat) {
//erstmal alle aus
        div_ref_style('lokal_unten').visibility =  "hidden";
        div_ref_style('bar_unten').visibility =  "hidden";
        div_ref_style('lokal_oben').visibility =  "hidden";
     // div_ref_style('lokal_oben2').visibility =  "hidden";
        div_ref_style('bar_oben').visibility =  "hidden";
        div_ref_style('team').visibility =  "hidden";
//dann nur aktuellen Link an:
	div_ref_style(id).visibility =  stat? "visible" : "hidden";
}