mark current sction i nthe left-frame

while navigating the left menu, it's sometimes unclear where or how we got to where we are.

i suggest simple hack to highlight the current menu-item (add in the left frame's HEAD section)

<SCRIPT LANGUAGE="JavaScript" src="http://code.jquery.com/jquery-1.8.3.min.js"></script>

<SCRIPT LANGUAGE="JavaScript">
$(document).ready(function() {
    $('.leftlink').click(function() { 
        $('.leftlink').css('background-color', 'transparent');
        this.style.backgroundColor='orange';
    })
})
</SCRIPT>