function showSecondMenuLevel(menuA, menuB, menuC, leftPos, widths){
	hideSecondMenuLevel();	
	var slmA = document.getElementById('nsA');
	var slmB = document.getElementById('nsB');
	var slmC = document.getElementById('nsC');
	if(menuA != "0"){
		document.getElementById('ns').style.visibility = "visible";
		document.getElementById('ns').style.left = leftPos;
		document.getElementById('ns').style.width = widths;
		slmA.innerHTML = menuA;
		slmA.style.visibility = "visible"
	}
	if(menuB != "0"){
		slmB.innerHTML = menuB;
		slmB.style.visibility = "visible"
	}
	if(menuC != "0"){
		slmC.innerHTML = menuC;
		slmC.style.visibility = "visible"
	}
}
function hideSecondMenuLevel(){
	document.getElementById('nsA').style.visibility = "hidden";
	document.getElementById('nsB').style.visibility = "hidden";
	document.getElementById('nsC').style.visibility = "hidden";
	document.getElementById('ns').style.visibility = "hidden";
}