If I'm not wrong, what you're trying to achieve is called Sticky navbar.
With a few lines of jQuery and the scroll event is pretty easy to achieve:
$(document).ready(function() {
var menu = $('.menu');
var content = $('.content');
var origOffsetY = menu.offset().top;
function scroll() {
if ($(window).scrollTop() >= origOffsetY) {
menu.addClass('sticky');
content.addClass('menu-padding');
} else {
menu.removeClass('sticky');
content.removeClass('menu-padding');
}
}
$(document).scroll();
});
I've done a quick working sample for you, hope it helps:
http://jsfiddle.net/yeco/4EcFf/
To make it work with Bootstrap you only need to add or remove "navbar-fixed-top" instead of the "sticky" class in the jsfiddle .
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