【茶包射手日記】呼叫showModalDialog時發生"物件不支援此屬性或方法"錯誤

接獲報案，某個在IE7運作已久的網頁改用IE8執行，onblur事件呼叫windows.showModalDialog()開啟新視窗的功能傳回"物件不支援此屬性或方法"(Object doesn't support this property or method)錯誤。sho...