<div class="ui-dialog-maxheight-scroll" style="max-height:480px; margin-top:15px;">
    <ul>
        {foreach item="work_area_category" from=$work_area_categories}
                <li class="dialog_make_text_btn ui-corner-all" onclick="md_work_packages.add_hoai_do({$parent_id}, {$tree_id}, '{$work_area_category->id}')">
                    <span class="dialog_make_btn16 ok ui-corner-all"></span>
                {$work_area_category->name}
                </li>
        {/foreach}
    </ul>    
</div>