YAHOO.util.Event.on(window, 'load', function(){
  var currlink = YAHOO.util.Dom.getElementsByClassName('active', 'a', 'work');
  // Attach behaviors
  YAHOO.util.Event.on( YAHOO.util.Dom.getElementsBy(function(el){return true;}, 'a', 'work'), 'click', function(e) {
    YAHOO.util.Event.stopEvent(e);
    if(currlink) {
      YAHOO.util.Dom.replaceClass(currlink, 'active', '');
    }
    currlink = this;
    YAHOO.util.Dom.addClass(currlink, 'active');
  });
});