Scroll selected Heading to top in expandable/collapsible list contained in absolute scrollable div

Scroll selected Heading to top in expandable/collapsible list contained in absolute scrollable div

Hi,
I have a expandable/collapsible list just like the one featured in jsfiddle.net/489Y2/6/.  This code only allows for one item to be expanded at a time.  I want to change its code so that more than one item can remain opened at a time.
Secondly, this code starts and scrolls the selected Heading to the top of the browser window.  I am trying to contain this code in an absolute div and position it in between a fixed header (height 200px) and a fixed footer (height 50px) and still keep the same scrolling effect.  When I do so, I lose the scrolling effect.  It scrolls the Heading all the way down the div or somewhere in the midst of the scrollable div region.
I feel my understanding of scrollTop, offset etc. is wrong.  I prefer not to use jQuery plugins until I have a good understanding of javascript.  Could someone please correct my mistakes or show me a working example that I can learn from.  Thank you.

  1. <!DOCTYPE html>
    <html>
    <head>
      <meta http-equiv="content-type" content="text/html; charset=UTF-8">
      <title> - jsFiddle demo</title>
      <script type='text/javascript' src='http://code.jquery.com/jquery-1.11.0.js'></script>
      <link rel="stylesheet" type="text/css" href="/css/result-light.css">
     
      <style type='text/css'>
    html {
    height:100%;
    max-height:100%;
    padding:0;
    margin:0;
    border:0;
    background:#fff;
    /* hide overflow:hidden from IE5/Mac */
    /* \*/
    overflow: hidden;
    /* */
    }

    body {height:100%;
        max-height:100%;
        overflow:hidden;
        padding:0;
        margin:0;
        border:0;}
     
    #head {position:absolute;
        margin:0;
        top:0;
        left:0;
        display:block;
        width:100
        height:200px;
        background:url(fish.jpg) rgb(233,238,242);
        background-repeat:no-repeat;
        font-size:4em;
        z-index:5;
        color:#fff;}
       
    #foot {position:absolute;
        margin:0;
        bottom:0;
        left:0;
        display:block;
        width:100%;
        height:50px;
        background:rgb(233,238,242);
        font-size:0.8em;
        z-index:5;
        text-align:right;
        color:rgb(157,78,84);}

    #stores, #abc {position: absolute;
        left:0;
        top:200px;
        bottom:50px;
        width:50%;
        font-size:1em;
        z-index:4;
        overflow:auto;}
       
    .details {
        display: none;
    }
    </style>
     
    <script type='text/javascript'>//<![CDATA[
    $(window).load(function(){
    $(".aro > .wrap").click(function () {
        if (!$(this).parent().hasClass("active")) {
           
            //$(".aro").removeClass("active");
            $(this).parent().addClass("active");
            $(this).parent().children(".details").slideDown("slow", function() {
                $('html, body').animate({
                    scrollTop: $(this).parent().offset().top
                }, 2000);
            });
        } else {
            $(this).parent().removeClass("active");
            $(this).parent().children(".details").slideUp("slow");
        }
    });
    });//]]> 

    </script>
    </head>
    <body>
    <div id="abc">
      <div class="aro">
        <div class="wrap">
          <h2>Headline</h2>
        </div>
        <div class="details">
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
        </div>
    </div>
    <div class="aro">
        <div class="wrap">
          <h2>Headline</h2>
        </div>
        <div class="details">
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
        </div>
    </div>
    <div class="aro">
        <div class="wrap">
          <h2>Headline</h2>
        </div>
        <div class="details">
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
        </div>
    </div>
    <div class="aro">
        <div class="wrap">
          <h2>Headline</h2>
        </div>
        <div class="details">
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
        </div>
    </div>
    <div class="aro">
        <div class="wrap">
          <h2>Headline</h2>
        </div>
        <div class="details">
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
        </div>
    </div>
    <div class="aro">
        <div class="wrap">
          <h2>Headline</h2>
        </div>
        <div class="details">
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
            <p>Content</p>
        </div>
    </div>

    </div>
    </body>
    </html>