(function ($) {

    $.fn.SignUpLightBox = function (lightBox) {
        return this.each(function () {
            $(this).click(function () {
			
                var lbOverlay  = (typeof lightBox == "undefined") ? $('#lb_contributor_overlay') : $(lightBox),
					overlayAPI = lbOverlay.overlay({
					    api: true,
					    mask: {
					        color: "#3F3F3F",
					        opacity: '0.8',
					        loadSpeed: 'normal'
					    },
					    speed: 'normal',
					    onClose: function () {

					    },
						closeOnEsc: false,
						closeOnClick: false,
                        left: '21%'
					});

                if (!overlayAPI.isOpened()) {
                    overlayAPI.load();

                    lbOverlay.css({
                        position: 'absolute', top: ($(window).scrollTop() + 50)
                    });
                }

                return false;
            });
        });
    };

})(jQuery);