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POAdd class to li item of element currently in view
 

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    <p>I have smooth scrolling to element. Active class is added to selected li. Everything is working fine until i scroll down with mouse, than active class is not adding to current element li.</p> <p>I am using: </p> <pre><code>&lt;ul class="features"&gt; &lt;li class="active"&gt;&lt;a href="#block1"&gt;block 1&lt;/a&gt;&lt;/li&gt; &lt;li class="active"&gt;&lt;a href="#block2"&gt;block 2&lt;/a&gt;&lt;/li&gt; &lt;li class="active"&gt;&lt;a href="#block3"&gt;block 3&lt;/a&gt;&lt;/li&gt; &lt;li class="active"&gt;&lt;a href="#block4"&gt;block 4&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt; &lt;div id="block1"&gt;my content....&lt;/div&gt; &lt;div id="block2"&gt;my content....&lt;/div&gt; &lt;div id="block3"&gt;my content....&lt;/div&gt; &lt;div id="block4"&gt;my content....&lt;/div&gt; </code></pre> <p>Jquery: </p> <pre><code>$('.menu-features li &gt; a').click(function() { $('.menu-features li').removeClass(); $(this).parent().addClass('active'); }); $('a[href^="#"]').click(function() { $('html,body').animate({ scrollTop: $(this.hash).offset().top-120}, 700); return false; e.preventDefault(); }); </code></pre> <p>I tried to use <a href="http://imakewebthings.com/jquery-waypoints/" rel="nofollow">waypoints</a> plugin to detect element in view, but how to mark li with the same id as blocks id?</p> <p>i used:</p> <pre><code>$('#block3').waypoint(function(direction) { $('.menu-features li').addClass('test') }); </code></pre> <p>but it adds test class to all li elements, but not for current in view.</p>
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