is there an event for normal text hilighting?

is there an event for normal text hilighting?

  1. (t = $("#contents .chapter")).click(zoomfunc = function(evt) {
        alert(evt);
        if(this != zoomednode) {
          var zoom, depth, t;
          if(!zoomednode)
            zoomednode = $(this).parents("ul")[0];
          t = depth = $(this).parents("ul").length;
          zoom = 130;
          while(--t > 0)
            zoom *= 1.15;
          zoom += '%';
          depth -= $(zoomednode).parents("ul").length;
          if(depth < 0)
        depth *= -1;
          zoomednode = this;
          $(contents).animate(
            { fontSize: zoom },
            45+45*depth, 0,
            function() {
             
            }
          );
        }
      })
      t.select = zoomfunc;


























'select' and 'focus' do not do what I want.  The above code zooms hierarchically-arranged chapters in scale to the 'top-most' chapter that was most recently clicked on.  I'm seeking an effect where if I CTRL-F in my browser for a chapter and it hilights it, it does the equivilent as if it had clicked on the chapter when hilighting it.