gistfile1.js

        var that = this;
        Overlay = {
            init: function(elementToOverlay, content, options) {
                that.options = $.extend({
                    element: 'div',
                    attributes: {}
                }, options);

                that.overlay = $(html[that.options.element](that.options.attributes, content))
                    .click(that.hideOverlay)
                    .addClass('overlay-hint')
                    .show();

                that.under = elementToOverlay.hide().after(that.overlay);
                that.overlay.show();
            },

            hideOverlay: function() {
                that.under.show();
                that.overlay.hide();
            }
        }
    };
    Overlay.init.prototype = Overlay