I have trouble with active class with this menu.

As you can see here, now active class is on all orders tab.
I want to active this this on each tab when i click on it with removing past tab's class.
HTML for this menu-
<ul id="mainSideMenu" class="nav nav-list nav-side" >
<li class="accordion-group">
<div class="accordion-heading active ">
<a href="#accDash" id="AllOrders" data-parent="#mainSideMenu" data-toggle="collapse" class="accordion-toggle ">
<span class="item-icon fontello-icon-monitor "></span><i class="chevron fontello-icon-right-open-3"></i>
All Orders
</a>
</div>
</li>
</ul>
Here is active class-
.nav-side .accordion-group > .active {
background: url("../img/background/body-bg-02.jpg") repeat scroll 0 0;
}
With jQuery i tried-
$(function(){
$(".accordion-group").click(function(){
$(".accordion-group").removeClass('.active').addClass('.active');
$(this).addClass('.active');
});
});
That was not happening
This is happening live here- Boo admin template