Bootstrap 3 Template

This is a simple Twitter Bootstrap 3 template. You can fork it to get a ready to use Bootstrap 3 fiddle.

HTML

<script src="//netdna.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css">
<div class="container">
    <div class="row">
        <div class="col-xs-4">
                <nav >
                    <div id="filterAnchor"></div>
                    <div id="filterScroll" class="fixed_div">
                        Fixed content First.</br>
                        Fixed content.</br>
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                        Fixed content Last.</br>
                        </div>
                </nav>
        </div>
        <div class="col-xs-8">
            Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur...

CSS

/* Latest compiled and minified CSS included as External Resource*/

/* Optional theme */
@import url('//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap-theme.min.css');

#filterScroll {
    position: fixed;
}
.stick-top {
    top: 0;
}
.stick-bottom {
    bottom: 0;
}

JavaScript

// Cache selectors for faster performance.
    var $window = $(window),
        $filterClass = $('#filterScroll'),
        $filterAnchor = $('#filterAnchor'),
        scrollPos = $window.scrollTop();
    // Run this on scroll events.
    $window.scroll(function() {
        var window_top = $window.scrollTop();
        var div_top = $filterAnchor.offset().top;
        var diff = scrollPos - window_top;
        var top = parseInt($filterClass.css('top'));
        if (isNaN(top)) {
            top = $filterClass.position().top
        }
        
        if (diff < 0) {
            $filterClass.removeClass('stick-bottom');
            if (!$filterClass.hasClass('stick-top')) {
                if (top < 0) {
                    $filterClass.addClass('stick-top');
                    $filterClass.css('top', 0);
                } else {
                    $filterClass.css('top', top+diff);
                }
            }
            
        } else {
            $filterClass.removeClass('stick-top');
            if (!$filterClass.hasClass('stick-bottom')) {
                if ($window.height() <= $filterClass.height() + top) {
                    $filterClass.addClass('stick-bottom');
                    $filterClass.css('top', '');
                } else {
                    $filterClass.css('top', top+diff);
                }
            }
        }
        scrollPos = window_top;
    });