Navigating dom to adjust custom jQuery accordion -


i have accordion working , works go down accordion, come it's kinda glitchy.

i want make when click on masthead open content within masthead , anchor top of page top of masthead. know need in pseudocode not sure code.

here's html:

<html> <head>     <meta>     <title></title>     <link rel="stylesheet" href="made-insider.css"> </head> <body>     <div class="accordion">         <div id="one" class="masthead"></div>         <div class="insider-info"></div>          <div id="two" class="masthead"></div>         <div class="insider-info"></div>          <div id="three" class="masthead"></div>         <div class="insider-info"></div>          <div id="four" class="masthead"></div>         <div class="insider-info"></div>     </div>      <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>     <script src="made-insider.js"></script> </body> </html>

here's jquery:

$(function() {    //checking position of panels   var allpanels = $('.insider-info').hide();    //working accordion code -- needs smoother   $('.accordion > .masthead').click(function(event) {      if ($(this).hasclass('active')) {         $(this).removeclass('active')             .next(allpanels).slideup(400);     } else {       var toppos = $(this).position();         $('.active').removeclass('active')             .next(allpanels).slideup(400);       //if previous accordion open         $('body').animate({ scrolltop: toppos.top - 200}, 600);       //if previous accordion not open         //$('body').animate({ scrolltop: toppos.top}, 600);         $(this).addclass('active')             .next(allpanels).slidedown(400);     }   });  });

i've tried things 

if ($(this).prev('.masthead').hasclass('.active')){     behavior },    if ($(this).prev().prev().hasclass('.active'){     behavior }  if ($(this).eq() < $('div.active').eq()){     behavior }

but none of them work. suggestions??

the problem spot in code need know index of .active runs after remove class .active whatever element has it.

solution: move bit of code

$('.active').removeclass('active')     .next(allpanels).slideup(400);

to end of event handler, right before add class .active new active element.

then condition you're looking is

if ($('.active').length && $('.active').index() < $(this).index()) {     // active accordion above new 1 (we're moving down) }

so, together, you're code this:

$('.accordion > .masthead').click(function (event) {      if ($(this).hasclass('active')) {         $(this).removeclass('active')             .next(allpanels).slideup(400);     } else {         var toppos = $(this).position();          // active accordion above new 1         if ($('.active').length && $('.active').index() < $(this).index()) {             $('body').animate({                 scrolltop: toppos.top - 200             }, 600);         } else { // active accordion below new one, or there no previous accordion             $('body').animate({                 scrolltop: toppos.top             }, 600);         }          $('.active').removeclass('active')             .next(allpanels).slideup(400);         $(this).addclass('active')             .next(allpanels).slidedown(400);     } });

jsfiddle here


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