phpengine/ui/header.tpl

<nav class="navbar navbar-expand-sm navbar-dark bg-dark om-shadow">
	<a href="{{@BASEURL}}/"><img class="img-fluid om-shadow navbar-brand customerlogo" src="{{@LOGO_CUSTOMER}}"/></a>
	<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#headerMenu" aria-controls="headerMenu" aria-expanded="false" aria-label="Toggle navigation">
		<span class="navbar-toggler-icon"></span>
	</button>

	<div class="collapse navbar-collapse" id="headerMenu">
		<ul class="navbar-nav">
			<repeat group="{{@GLOBALMENU}}" key="{{ @ikey }}" value="{{@menuitem}}">
				<check if="{{ !empty(@menuitem.url) }}">
					<li class="nav-item">
						<a role="button" class="nav-link btn btn-secondary" href="{{@BASEURL . '/' . @menuitem.url}}">{{@ikey}}</a>
					</li>
				</check>
			</repeat>
		</ul>
	</div>

	<div class="ml-auto dropdown dropleft navbar-brand">
		<a id="notification_area_button" class="disabled" href="javascript:void(0)" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false" class="mr-3" style="position: relative">
			<img src="{{@BASEURL}}/ui/images/bell.png"/>
			<span id="sysmsgnum" class="blink badge badge-light"></span>
		</a>
		<div id="notification_area" class="dropdown-menu" aria-labelledby="dropdownMenuButton"></div>
	</div>
	<div>
		<a href="{{@BASEURL}}/logout"><img src="{{@ICON_LOGOUT}}" class="img-fluid om-shadow"/></a>
	</div>
</nav>