How to save and retrieve the status of a dropdown menu between views?

Hi, I'm almost finishing my first cake app so I'm fixing some UI issues. 

Straight to the point: I have a sidebar menu with a dropdown submenu, the folding state is defined by the css class "closed" so my question is how can I save that status to persist between views? Now when I navigate to another view the class resets to closed.

this is my View (rendered from my sidebar element):

<div id="mws-sidebar">

        <div id="mws-navigation">

            <ul>

                <li><?php echo $this->Html->link('Clients', '/clients', array('class' => 'mws-i-24 i-group'))?></li>

                <li><?php echo $this->Html->link('Transfers', '/transfers', array('class' => 'mws-i-24 i-power'))?></li>

                <li><?php echo $this->Html->link('Hits', '/hits', array('class' => 'mws-i-24 i-alarm-bell-2'))?></li>

                <li>

                    <?php echo $this->Html->link('Admin', '#', array('class' => 'mws-i-24 i-cog')); ?>

                    <ul class="closed">

                        <li><?php echo $this->Html->link('Users', '/allUsers'); ?></li>

                        <li><?php echo $this->Html->link('Groups', '/allGroups'); ?></li>

                        <li><?php echo $this->Html->link('Permissions', '/permissions'); ?></li>

                    </ul>

                </li>

            </ul>

        </div>            

    </div>

This is the Js that toggles the submenu when the user click on the parent <li> tag:

$("div#mws-navigation ul li a, div#mws-navigation ul li span")

.bind('click', function(event) {

if($(this).next('ul').size() !== 0) {

$(this).next('ul').slideToggle('fast', function() {

$(this).toggleClass('closed');

});

event.preventDefault();

}

});

Thanks for your help, I really appreciate it in advance.

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