function reset_ebene1() {
	
	document.getElementById("1_1").className="menue";
	document.getElementById("1_2").className="menue";
	document.getElementById("1_3").className="menue";
	document.getElementById("1_4").className="menue";
	document.getElementById("1_5").className="menue";
	document.getElementById("1_6").className="menue";
	
}

function hide_ebene2() {
	document.getElementById("1").style.display="none";
	document.getElementById("2").style.display="none";
	document.getElementById("3").style.display="none";
	document.getElementById("4").style.display="none";
	document.getElementById("5").style.display="none";
	document.getElementById("6").style.display="none";
}

function hide_ebene3() {
	document.getElementById("2_1").style.display="none";
	document.getElementById("2_2").style.display="none";
	document.getElementById("2_3").style.display="none";
	document.getElementById("2_4").style.display="none";
}

function mainmenu(sid,mid) {
	subid=sid+"_"+mid;
	reset_ebene1();
	hide_ebene2();
	document.getElementById(mid).style.display="";
	document.getElementById(subid).className="aktivmenue";
}

function submenu() {
	
}