Smooth scrolling to anchor with offset for navigation

offset_scroll.js

var offset = 60;

$("a[href*=#]:not([href=#])").click(function() {
    if (location.pathname.replace(/^\//, "") == this.pathname.replace(/^\//, "") || location.hostname == this.hostname) {
        var t = $(this.hash);
        
        if (t = t.length ? t : $("[name=" + this.hash.slice(1) + "]"), t.length)
            return $("html,body").animate( {scrollTop: t.offset().top - offset}, 1e3), !1
    }
});