<li class="active">
    <a href="<?php echo web_root;?>res/gate?b=home" title="Dashboard" data-filter-tags="Dashboard">
        <i class="fa fa-dashboard"></i>
        <span class="nav-link-text">Dashboard</span>
    </a>
</li>

<li>
    <a href="#" title="maintenance" data-filter-tags="maintenance">
        <i class="fa fa-cog"></i>
        <span class="nav-link-text" data-i18n="nav.maintenance">Maintenance</span>
    </a>

    <ul>
                
        <li>
            <a href="<?php echo web_root;?>res/gate?b=mat" title="Materials" data-filter-tags="materials document">
                <span class="nav-link-text" data-i18n="nav.materials">Materials</span>
            </a>
        </li>

        <li>
            <a href="<?php echo web_root;?>res/gate?b=typeItm" title="Type" data-filter-tags="type document">
                <span class="nav-link-text" data-i18n="nav.type">Types</span>
            </a>
        </li>

        <li>
            <a href="<?php echo web_root;?>res/gate?b=elmt" title="Element" data-filter-tags="element document">
                <span class="nav-link-text" data-i18n="nav.element">Elements</span>
            </a>
        </li>

        <li>
            <a href="<?php echo web_root;?>res/gate?b=ctgi" title="Category" data-filter-tags="category document">
                <span class="nav-link-text" data-i18n="nav.category">Categories</span>
            </a>
        </li>

        <li>
            <a href="<?php echo web_root;?>res/gate?b=itm" title="Items" data-filter-tags="items document">
                <span class="nav-link-text" data-i18n="nav.items">BOQ Items</span>
            </a>
        </li>

    </ul>
</li>