function addLoadEvent(func) {
	var oldonload = window.onload;
	if (typeof window.onload != 'function') {
		window.onload = func;
	} else {
		window.onload = function() {
			oldonload();
			func();
		}
	}
}

function showSection(id) {
	var divs = document.getElementsByTagName("div");
	for (var i=0; i<divs.length; i++ ) {
		if (divs[i].className.indexOf("scooter_model") == -1) continue;
		if (divs[i].getAttribute("id") != id) {
		  divs[i].style.display = "none";
		} else {
		  divs[i].style.display = "block";
		}
	}
}
					
function prepareInternalnav() {
	if (!document.getElementsByTagName) return false;
	if (!document.getElementById) return false;
	if (!document.getElementById("items")) return false;
	//change the id in firstOne to which ever div you want to show first
	var firstOne = document.getElementById("swift");
	var nav = document.getElementById("items");
	var links = nav.getElementsByTagName("a");
	for (var i=0; i<links.length; i++ ) {
		var sectionId = links[i].getAttribute("href").split("#")[1];		
			if (!document.getElementById(sectionId)) continue;
				firstOne.style.display = "block";
				document.getElementById(sectionId).style.display = "none";
				links[i].destination = sectionId;
				links[i].onclick = function() {
				showSection(this.destination);
				return false;
			}
	}
}
	
addLoadEvent(prepareInternalnav);