document.getElementById('div0').style.display = "block";
window.onload = function() {
// Setup - hide all divs initially, assign event to links
HideDivs();
for (var i = 0; i < allDivs.length; i++) {
var link = i;
document.getElementById(link).addEventListener("click", ShowDiv, false);
}
document.getElementById('div0').style.display = "block";
}