function showNav(){
		if(firstLevel == "none"){	
		} else if (document.getElementById(firstLevel).className = "navClosed"){
			document.getElementById(firstLevel).className = "navOpen";
			
			if(secondLevel == "none"){
			} else if  (document.getElementById(secondLevel).className = "navClosed"){
				document.getElementById(secondLevel).className = "navOpen";

				if(thirdLevel == "none"){
				} else if  (document.getElementById(thirdLevel).className = "navClosed"){
					document.getElementById(thirdLevel).className = "navOpen";
				}
	
			}
		}
	}

function init(){
	showNav();
}

window.onload = init;