нашел в нете такой скрипт:
$(function() {
var nav_container = $(".nav-container");
var nav = $("nav");
var top_spacing = 50;
var waypoint_offset = 50;
nav_container.waypoint({
handler: function(event, direction) {
if (direction == 'down') {
nav_container.css({ 'height':nav.outerHeight() });
nav.stop().addClass("sticky").css("top",-nav.outerHeight()).animate({"top":top_spacing});
} else {
nav_container.css({ 'height':'auto' });
nav.stop().removeClass("sticky").css("top",nav.outerHeight()+waypoint_offset).animate({"top":""});
}
},
offset: function() {
return -nav.outerHeight()-waypoint_offset;
}
});
var sections = $("section");
var navigation_links = $("nav a");
sections.waypoint({
handler: function(event, direction) {
var active_section;
active_section = $(this);
if (direction == "up") active_section = active_section.prev();
var active_link = $('nav a[href="#' + active_section.attr("id") + '"]');
navigation_links.removeClass("selected");
active_link.addClass("selected");
},
offset: '25%'
})
navigation_links.click( function(event) {
$.scrollTo(
$(this).attr("href"),
{
duration: 1800,
offset: { 'left':0, 'top':-0.15*$(window).height() }
}
);
});
});
От него можно оттолкнуться или это вообще не то?
