$(function() {
    $("#overlay").overlay({
		    // one configuration property 
    color: '#FF4B33', 
	speed: 'slow',
 
    // another property 
   
  
        onBeforeLoad: function() {
            this.expose();
        },

        // when overlay is closed take the expose instance and close it as well 
        onClose: function(content) {
            $f().unload();

            // cloase exposing
            $.expose.close();
        }

    });
});

// install overlay with default settings

// define function that opens the overlay
function openOverlay() {

    // get access to the overlay API
    var api = $("#overlay").overlay();

    // call it's open() method		
    api.load();
}