var i = "start";
var j = "ber0";
var k = "A";
var l = "A_aktiv";

if (document.layers)  {
     ns = 1; ie = 0;
} else {
     ns = 0; ie = 1;
     }

function wechsel(inhal,subnav,nav1)
{
// Die folgenden  Zeilen sind für den Wechsel der linken und oberen Navigationsseite und der Inhaltsseite zuständig:
   if (inhal == "presseaktuell.html")
   { parent.inhalt.location.href = "http://presse.rittal.de/" + inhal; }
   else
   { parent.inhalt.location.href = inhal; }

   if (subnav != '')
   { parent.subnav.location.href = "navigation/" + subnav; }
// =============================

var zw = nav1.substr(0,1);
switch(zw) {
 case "a": ber = 'ber1';
 break;
 case "b": ber = 'ber2';
 break;
 case "c": ber = 'ber3';
 break;
 case "d": ber = 'ber4';
 break;
 case "e": ber = 'ber5';
 break;
 default:  ber = 'ber0';
 break;
}

verbergen(eval('"'+ i +'"'));
zeigen(eval('"' + nav1 +'"'));
i = nav1;

verbergen(eval('"'+ j +'"'));
zeigen(eval('"' + ber +'"'));
j = ber;

xshow(eval('"'+ zw.toUpperCase() +'"'));

}


function xshow(nav)
{
verbergen(eval('"'+ k +'"'));
zeigen2(eval('"' + nav +'"'));
k = nav;

verbergen(eval('"'+ l +'"'));
zeigen(eval('"' + nav +'_aktiv"'));
l = nav + '_aktiv';
}


function zeigen(name) {
if (ns) {
    document.layers[''+name].visibility = "show";
    }
    else {
    document.all[''+name].style.visibility = "visible"
    }
}

function zeigen2(name) {
if (ns) {
    document.layers[''+name].visibility = "show";
    document.layers[''+name].left = 107;
    document.layers[''+name].top  = 44;
    }
    else {
    document.all[''+name].style.visibility = "visible"
    document.all[''+name].style.left = 107;
    document.all[''+name].style.top  = 44;
    }
}

function verbergen(name) {
if (ns){
    document.layers[''+name].visibility = "hide"
    }
    else {
    document.all[''+name].style.visibility = "hidden"
    }
}