onepage nav js

      
        //onepage nav start
            $('ul#nav > li > a').click(function() {
                if (location.pathname.replace(/^\//,'') == this.pathname.replace(/^\//,'') 
                || location.hostname == this.hostname) {

                var target = $(this.hash);
                target = target.length ? target : $('[name=' + this.hash.slice(1) +']');
                   if (target.length) {
                     $('html,body').animate({
                         scrollTop: target.offset().top
                    }, 1000);
                    return false;
                }
            }
        }); 
        //onepage nav end