The mmpagehighlighter.js module has been activated through the use of the onload event.
This would also be useful to apply pagematching to a url that is not reach directly through a menu
item. Again, notice the single quotes around the 'item' listed to distinguish the parameter in the function from the double quotes around the onload argument.
This page activates the highlight by text using the following code
<body onload="mmItemActivateByText('about us')">