jquery - Triggering navigation while scrolling -


i'm trying modify navigation links depending on section scrolled on user.

i have following html

<div class="navigation">     <a href="#resume">resume</a>     <a href="#design">design</a>     <a href="#" class="contact">contact</a> </div>

and following structure

<section id="resume">my content</section> <section id="design">....

in order achieve effect i'm using tutorial presented here works smooth scrolling doesn't add class navigation links.

would able understand why?

thanks lot, julien

you can use this:

css

.navigation { position:fixed; top:0; left:0; width:100%; background-color:#88f; } .navigation { margin:2em; color:white; text-decoration:none; } .navigation a.active {text-decoration:underline; color:red;} #resume { margin-top:50px; } section { margin:2em; height:500px; background-color:#eee; }

jquery

$(function(){     var links = $('.navigation>a'); //.not('.contact');     var sections = $('section');     links.click(function(e){         e.preventdefault();         var p = $(this.getattribute('href')).position().top;         $("html, body").stop().animate( { scrolltop: (p-30)+'px' }, 500);     });     $(window).on('scroll', function(e){         var i=0;         sections.each(function(j){             var br = this.getboundingclientrect();             if (br.top<150) { // distance top of screen                 = j;             }         });         var scrollbottom = $(document).height() - $(window).height() - $(window).scrolltop();         if (scrollbottom < 40) { // highlight last section             = sections.length-1;         }         links.removeclass('active');         var active = sections.eq(i).attr('id');         links.filter('[href="#'+active+'"]').addclass('active');     }).trigger('scroll'); });

jsfiddle: http://jsfiddle.net/grcjc/3/ http://jsfiddle.net/grcjc/3/show


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