I was trying to figure out this question as well.
I suspect is has to do with JS doing an onclick or onmouseup BEFORE the anchor href is followed. So, does anyone know how to follow the link as specified in the tag <a href="/about-us/index.php"> in addition to doing the expanding menu. Here are two things I've tried that have not worked so far...
Code:
<li class="onclick" onmousedown="location.href='/about-us/index.php';">
...
</li>
Code:
<li class="onclick" onclick="location.href='/about-us/index.php';">
...
</li>