You can check each link and see if it matches the current location. This can be more or less advanced depending on your needs, but something like:
var loc = window.location.pathname;
$('.icyLink').find('a').each(function() {
$(this).toggleClass('active', $(this).attr('href') == loc);
});
Then style the active class in your CSS:
.icyLink a.active{color:#fff}