function popup(datei)
{
	window.open(datei,"popup","directories=0,location=0,menubar=0,resizable=0,scrollbars=1,status=0,toolbar=0,width=600,height=450,left=100,top=100");
}

function seite(datei)
{
	window.open(datei,"seite","directories=1,location=1,menubar=1,resizable=1,scrollbars=1,status=1,toolbar=1");
}


function show_sub(nummer,aktiv) {
	
	document.getElementById('nav_' + nummer).style.backgroundPosition = "0px -22px";
	document.getElementById('sub_navi_' + nummer).style.visibility = "visible";
	
}
function hide_sub(nummer,aktiv) {

	document.getElementById('nav_' + nummer).style.backgroundPosition = "0px 0px";
	document.getElementById('sub_navi_' + nummer).style.visibility = "hidden";
	
}