function whatBrow()
{

// Betriebssystem
os_Mac = (navigator.appVersion.indexOf("Mac") != -1);
os_PC = (! os_Mac) ? true : false;

// Browserfeatures
has_DOM = (document.getElementById) ? true : false; // Unterstuetzt DOM (Document Object Model)

// Netscape Navigator
is_NS = (navigator.userAgent.indexOf("Netscape")!=-1);
is_NS4 = (document.layers) ? true : false;
is_NS6 = (navigator.userAgent.indexOf("Netscape6")!=-1);
is_NS7 = (navigator.userAgent.indexOf("Netscape/7")!=-1);

// Internet Explorer
is_IE = (document.all) ? true : false; // Internet Explorer (PC und Mac)
is_IE4 = is_IE && (! has_DOM);
is_IE4Mac = is_IE4 && os_Mac;
is_IE5Mac = ((is_IE) && (! is_IE4Mac) && (os_Mac));

// Opera
is_Opera = (navigator.userAgent.indexOf("Opera")!=-1);

// FireFox
is_FF = (navigator.userAgent.indexOf("Firefox")!=-1);


// Konqueror	
is_Konqueror = (navigator.userAgent.indexOf("Konqueror")!=-1);

// Safari MAC
is_SAF = (navigator.userAgent.indexOf("Safari")!=-1);  


HM_DOM = (document.getElementById) ? true : false;
	HM_NS4 = (document.layers) ? true : false;
	HM_IE = (document.all) ? true : false;
	HM_IE4 = HM_IE && !HM_DOM;
	HM_Mac = (navigator.appVersion.indexOf("Mac") != -1);
	HM_IE4M = HM_IE4 && HM_Mac;
	HM_Opera = (navigator.userAgent.indexOf("Opera")!=-1);
  HM_NS6 = (navigator.userAgent.indexOf("Netscape6")!=-1); // vor her NS6
	HM_NS = (navigator.userAgent.indexOf("Netscape")!=-1); // vor her NS6
	HM_Konqueror = (navigator.userAgent.indexOf("Konqueror")!=-1);

	HM_IsMenu = !HM_Opera && !HM_Konqueror && !HM_IE4M && (HM_DOM || HM_NS4 || HM_IE4);

	HM_BrowserString = HM_NS4 ? "NS4" : HM_DOM ? "DOM" : "IE4";
	// alert(HM_BrowserString);

	return;


}



function killdivs () {
	// alert('test');
 hideMenusubs();
}

function hideMenusubs()
{
//alert(HM_BrowserString);
 whatBrow();
//alert(LayName);

	
	if(document.all)
	{
	document.all['menuprogramm'].style.visibility ="hidden";
	}
	 if(document.getElementById)
	{
	document.getElementById('menuprogramm').style.visibility ="hidden";	
	}
	else if(document.layers)
	{
	document.layers['menuprogramm'].document.layers['Menu1126'].visibility ="hidden";
	}
}

 function showMenusub(LayName)
{
// alert(HM_BrowserString);
// whatBrow();
// alert(LayName);


switch (LayName) {
 
  case "menuprogramm":
  
	if(document.all)
	{
	 document.all['menuprogramm'].style.visibility ="visible";
	 break;
	}
	 if(document.getElementById)
	{
	document.getElementById('menuprogramm').style.visibility ="visible";	
	break;
	}
	else if(document.layers)
	{
	document.layers['menuprogramm'].document.layers['menuprogramm'].visibility ="visible";
	break;
	}

 default:
	break;

	}


}