(function(){
	var basePath, overlayOptions, overlayContent;
	
	basePath = document.getElementById('homelink').href;
	basePath = basePath.substring(0, basePath.indexOf('index.htm'));
	
	overlayOptions = {
		backgroundImage: basePath + 'overlay/checkered.png',
		closeButtonImage: basePath + 'overlay/close-button.png'
	};
	
	overlayContent = {
		group1: { resourceType:'image' },
		group2: { resourceType:'image' },
		group3: { resourceType:'image' },
		group4: { resourceType:'image' },
		group5: { resourceType:'image' },
		group6: { resourceType:'image' }
	};
	
	// This is the necessary code to get the overlay effect running
	Util.addEventListener('load', window, function() {
		var myOverlay = new Overlay(overlayContent, overlayOptions);
	});
})();