// Have You Figured It Out Yet
var rotatingTextElement;
var rotatingText = new Array();
var ctr = 0;

function initRotateText() {
rotatingTextElement = document.getElementById("textToChange");
rotatingText[0] = rotatingTextElement.innerHTML; // store the content that's already on the page
rotatingText[1] = "What's that?";
rotatingText[2] = "Who's the best.";
setInterval(rotateText, 3000);
}
function rotateText() {
ctr++;
if(ctr >= rotatingText.length) {
ctr = 0;
}
rotatingTextElement.innerHTML = rotatingText[ctr];
}
window.onload = initRotateText;