var navElement = "";
var lvl3Selected = null;

function setupNav(navEl, lvl3Sel){
	
	navElement = navEl;
	lvl3Selected = lvl3Sel;

	if (window.onload){
		var func = window.onload;
		window.onload = function() {
			updateNav();
			func();
		}
	} else { 
		window.onload = updateNav; 
	}
}

function updateNav(){
	lvl2Nav = document.getElementById(navElement + "_top");
	lvl3Nav = document.getElementById(navElement + "_side");
	if(lvl2Nav){	
		lvl2Nav.style.textDecoration = "underline";
	}
	if(lvl3Nav){
		lvl3Nav.style.display = "block";
		
		if(lvl3Selected || lvl3Selected ==0){
		els = lvl3Nav.getElementsByTagName('li');
		if(els[lvl3Selected]) { els[lvl3Selected].className = "selected";}
		}

	}
}