target pseudo class question (advanced selectors)

$("nav a").bind("click", function(click){ 
    //stop the page from autoscrolling to the select element
     click.preventDefault();
     //variable that changes the clicked link's href into an ID
     var target = "#"+$(this).attr("href");
     //hold this distance from the top that the element with ID target is located
     var position = $(target).offset();
     //scrolls the page to the selected element
     $(body).animate({scrollTop : position.top}, 600);
     //add class to the element to apply css
     $(target).addClass("target");
     //creates a temporary click event for the body to undo the "target" css
 $("body *").bind("click", function(){
         $(target).removeClass("target");
            highlight = false;
                    //unbind temporary click assigned to all body element to undo "target" css
                    $(" body *").unbind("click");
   });
   });