jquery crossbrowser.
<script>
$(document).ready(function() {
var div = $('**.fixed**');
var start = $(div).offset().top;
$.event.add(window, "scroll", function() {
var ul = $(window).scrollTop();
$(div).css('position',((ul)>start) ? 'fixed' : '');
});
});
$('a[href*=#]:not([href=#])').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
}, 2000);
return false;
}
}
});
</script>