$(document).ready(function() {


  $("#topnav li").prepend("<span></span>"); //Throws an empty span tag right before the a tag

  $("#topnav li").each(function() { //For each list item...
    var linkText = $(this).find("a").html(); //Find the text inside of the a tag
    $(this).find("span").show().html(linkText); //Add the text in the span tag
  });

  $("#topnav li").hover(function() {	//On hover...
    $(this).find("span").stop().animate({
      marginTop: "-40" //Find the span tag and move it up 40 pixels
    }, 250);
  } , function() { //On hover out...
    $(this).find("span").stop().animate({
      marginTop: "0" //Move the span back to its original state (0px)
    }, 250);
  });

});