$(document).ready(function() {
  if (jQuery.fn.superfish) {
    jQuery(".sf-menu").supersubs({
            maxWidth  : 27,
            extraWidth: 1
        })
    .superfish({
            delay		: 750,
            speed		: "fast",
						animation: { opacity:'show', height:'show'},
						dropShadows: false
        })
    .find(">li[ul]").mouseover(function() {
            $("ul", this).bgIframe({ opacity:0});
        })
    .find("a").focus(function() {
            $("ul", $(".nav>li[ul]")).bgIframe({opacity:false});
    });
  }
});