$(document).ready(function(){
$("#nav-fragment-1").hover(function(){$(this).addClass("ui-state-active");}, function() {$(this).removeClass("ui-state-active");})
$("#nav-fragment-2").hover(function(){$(this).addClass("ui-state-active");}, function() {$(this).removeClass("ui-state-active");})
$("#nav-fragment-3").hover(function(){$(this).addClass("ui-state-active");}, function() {$(this).removeClass("ui-state-active");})
$("#nav-fragment-4").hover(function(){$(this).addClass("ui-state-active");}, function() {$(this).removeClass("ui-state-active");})
});