$(document).ready(function() {
	$("#membership-overlay").overlay({
		absolute: false,
		close: 'a.close-overlay',
		closeOnClick: false,
		expose: { 
		        color: '#000000', 
		        loadSpeed: 200, 
		        opacity: 0.7 
		    },
		top: 'center',
		left: 'center'
	});
});