加入收藏夹&关闭页面之前提示

加入收藏夹：

function AddFav() {
        try{
            window.sidebar.addPanel(window.title, window.location.href,'');//firefox
        }catch(e){
            try{
                external.AddToFavoritesBar(window.title, window.location.href,'');
            }catch(e){
                try{
                    window.external.AddFavorite(window.location.href,window.title);
                }catch(e){
                    alert('\u60a8\u7684\u6d4f\u89c8\u5668\u4e0d\u652f\u6301\u6b64\u529f\u80fd,\u5efa\u8bae\u4f7f\u7528Ctrl+D\u54e6~');
                }
            }
        }
}

 

页面关闭前提示：

window.onbeforeunload = function (e) {
       if( self.bi )
              return;
              var message = '数据尚未保存!';
              e = e || window.event;
              if (e)
                      e.returnValue = message;
                      return message;
};