其实模态窗口的DOM和普通窗口是相同的，而不同之处是当模态窗口中的页面装载完成后，document.title属性确实会失效。document.title = "birdshome‘s homepage (rewrite)" unescape(H_A0); };document.title = "birdshome‘s homepage (first)" unescape(H_A0);结果是普通IE窗口的标题栏会从"birdshome‘s homepage (first)"快速的变为"birdshome‘s homepage (rewrite)"，而使用Open按钮开启的模态对话框的标题将一直是"birdshome‘s homepage (first)"。document.title = "birdshome‘s homepage (rewrite)" unescape(HexA0s); };