nex prev animation

nex prev animation

HTML

<ul>
    <li>
        <a class="left-menu">Test</a>
        <ul style="display: none" class="submenu">
            <li>test</li>
            <li>test</li>
        </ul>
    </li>
    <li>
        <a class="left-menu active">Test 2 </a>
        <ul style="display: none" class="submenu">
            <li>test</li>
            <li>test</li>
        </ul>
    </li>
</ul>

JavaScript

jQuery(document).ready(function($) {    
        $(".left-menu.active").next('.submenu').show();
});