問題：
1.User clicks on this link: default.aspx#id=1.
2.The page loads, the JS from the page gets the fragment identifier (in this case id=1), and then it posts back and loads some content based on that id.
3.User then clicks on the next link: default.aspx#id=2.
4.Same as 2.
5.User clicks the back button in browser.
6.The url changes back to default.aspx#id=1 but the postback is not fired so the new content from #id=1 is not loaded again. (in other words, the page content is not refreshed)
私が必要とするのは、戻るボタンが押されたときに #id=1 に従ってページをリロードすることです。ありがとう！