function replaceUTD(elmID, utdObj) { 
  var elm = document.getElementById(elmID);
  if ( ! elm)  return;

  var newp = document.createElement('p');

  var newa = document.createElement('a');
  newa.className = 'flashlink';
  newa.href = utdObj['url'];
  newa.innerHTML = utdObj['title'];

  newp.appendChild(newa);

  newp.appendChild(document.createElement('br'));

  var newd = document.createTextNode(utdObj['description']);
  newp.appendChild(newd);

  var par = elm.parentNode;
  par.replaceChild(newp, elm);
}

function initialize() {
	
	var dte = new Date();
	var dayOfMonth = dte.getDate();
	
	//var ind = dayOfMonth % sensoryStuffUTDs.length;
	var ind = Math.floor(Math.random() * sensoryStuffUTDs.length);
	replaceUTD('sensorygames', sensoryStuffUTDs[ind]);

	var ind2 = Math.floor(Math.random() * ideasUTDs.length);
	replaceUTD('ideasgames', ideasUTDs[ind2]);
	
	var ind3 = Math.floor(Math.random() * creativityUTDs.length);
	replaceUTD('creativitygames', creativityUTDs[ind3]);

}

function addEvent(elm, evType, fn, useCapture) {
	//cross-browser event handling by Scott Andrew
	if (elm.addEventListener) {
		elm.addEventListener(evType, fn, useCapture);
		return true;
	}
	else if (elm.attachEvent) {
		var r = elm.attachEvent('on'+evType, fn);
		return r
	}
	else {
		elm['on'+evType] = fn;
	}
}

addEvent(window, 'load', initialize, false);