$(document).ready(function() {
$(".likelink").click(function(event) {
    var myLink = $(this).attr("href");
    var myEntry = $(".likelink").attr("id");
    $(this).html("<img src='http://mathskit.net/images/plus_silver.png' width='12' height='12' alt='loading' />").load(myLink, function () {
         $(this).parent().html("<img src='http://mathskit.net/images/tick.png' width='12' height='12' alt='liked' />");
      });
    event.preventDefault();
    });
});