var Header = new function(fileNameArray) {
	if(typeof(fileNameArray) == "undefined" || fileNameArray == null) {
		// add images for new random headers
		fileNameArray = ["Creek.jpg", 
			   "Gillette.jpg", 
			   "LuckeyMem.jpg", 
			   "Music.jpg",
			   "Pathway.jpg", 
			   "Piano.jpg", 
			   "RedBuilding.jpg"];
	}
	
	// assign background image; include url path relative to the html documents
	this.init = function() {
		var seed = new Date().getSeconds();
		document.getElementById("header").style.backgroundImage = "url(http://www.csehy.com/images/headers/" + fileNameArray[Math.floor(Math.random(seed)*fileNameArray.length)] +")";
	}
}

var Footer = new function() {
	this.init = function() {
		document.getElementById('footer').innerHTML = 
			'Csehy Summer School of Music | Year-round Office | 175 Angora Pl, Clifton Heights, PA 19018 | (610) 623-1326<br />\
			 Summer Office | Csehy Music | Houghton College | Houghton NY 14744 | (585) 567-9274';	
	}
}