SO fiddle

Test Fiddle mainly for SO Questions

by Nick Craver

HTML

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/themes/dot-luv/jquery-ui.css">
<div id="users">
    <div class="away">Some Content Away</div>
    <div class="online">Some Content Online</div>
    <div class="offline">Some Content Offline</div>
    <div class="away">Some Content Away</div>
    <div class="online">Some Content Online</div>
    <div class="offline">Some Content Offline</div>
    <div class="online">Some Content Online</div>
    <div class="online">Some Content Online</div>
    <div class="away">Some Content Away</div>
</div>

JavaScript

var statusOrder = ["online", "away", "offline"];
for(var i=0; i<statusOrder.length; i++) {
    $("#users ." + statusOrder[i]).appendTo("#users");
}