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("section") == -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("internalnav")) return false;
	var nav = document.getElementById("internalnav");
	var links = nav.getElementsByTagName("a");
	for (var i=0; i<links.length; i++ ) {
		var sectionId = links[i].getAttribute("href").split("#")[1];
		document.getElementById(sectionId).style.display = "none";
		links[i].destination = sectionId;
		links[i].onclick = function() {
			showSection(this.destination);
			return false;
		}
	}
}

addLoadEvent(prepareInternalnav);

function stripeTables() {
if (!document.getElementsByTagName) return false;
var tables = document.getElementsByTagName("table");
for (var i=0; i<tables.length; i++) {
		var odd = false;
		var rows = tables[i].getElementsByTagName("tr");
		for (var j=0; j<rows.length; j++) {
			if (odd == true) {
				rows[j].style.backgroundColor ="#EFECD1";
				odd = false;
			} else {
				odd = true;
			}
		}
	}
}

addLoadEvent(stripeTables);