function changeHomeContentBg () {
	var ranNum = (Math.floor(Math.random() * 6) + 1);  //generates 1 - 6 as the random number
	var choice = ranNum;
	var idToShow = "homeLeftContent" + choice;
	contentString = "document.getElementById(\'" + idToShow + "\')";
	contentObj = eval(contentString);
	contentObj.style.display = "block";
}