$( function() {

$("#ui-tabs-thcr").find("li").children("a").click( function() {
  var tabIndex = parseInt($(this).attr("rel"));
  var tabSelection = tabIndex * 27;
  var tabSelectionStyle = "0px -" + tabSelection + "px";
  $("#ui-tabs-thcr .ui-tabs-nav").css("background-position", tabSelectionStyle); 
});

});