var UnloadConfirm = {};
        UnloadConfirm.MSG_UNLOAD = "資料尚未儲存，離開後可能會導致資料丟失\n\n您確定要離開嗎？";
        UnloadConfirm.set = function(a) {
            window.onbeforeunload = function(b) {
                b = b || window.event;
                b.returnValue = a;
                return a
            }
        };
        UnloadConfirm.clear = function
 
() {
            fckDraft.delDraftById();
            window.onbeforeunload = function() {
            }
        };
        UnloadConfirm.set(UnloadConfirm.MSG_UNLOAD);