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<div class="dropdown">

            <a id="dLabel" role="button" data-toggle="dropdown" class="btn btn-primary" data-target="#" href="/page.html">

                Select Year <span class="caret"></span>

            </a>

        <ul class="dropdown-menu multi-level" role="menu" aria-labelledby="dropdownMenu">

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                <li class="dropdown-submenu year">

                    <a tabindex="-1" href="#" >2011</a>

                </li>

                <li class="dropdown-submenu year">

                    <a tabindex="-1" href="#" >2012</a>

                </li>

                <li class="dropdown-submenu year">

                    <a tabindex="-1" href="#" >2013</a>

                </li>

            </ul>

        </div>

<div id="chartContainer"> 

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