js修改地址欄但不刷新頁面

var stateObject = {id: txt};
	var title = "標題 "+txt;
	var newUrl = txt;
	history.pushState(stateObject,title,newUrl);

　　

for(i=0;i<5;i++){
  var stateObject = {id: i};
  var title = "Wow Title "+i;
  var newUrl = "/my/awesome/url/"+i;
  history.pushState(stateObject,title,newUrl);
  alert(i);
}

window.addEventListener('popstate', function(event) {
  readState(event.state);
});

function readState(data){
  alert(data.id);
}