Change in Line 1750 seems do not work. I think Line 1826 is right.

            previewWindow.onmouseenter = previewWindow.onmouseleave = function (e)
            {
                var me = this;
                if (e.type == "mouseenter")
                {
                    clearInterval(me.iid);
                }
                else
                {
                    me.iid = setTimeout(function ()
                    {
                        TSL.removeNode(me);
                    }, 500);
                }
            }

It seems there was an option to change it in the setting panel but I cannot find it now.
Can you tell me where I can change it in the code?

Just want to know when will be fixed, still wait for the phone API's back?

Re: @thenecromancer:
Just hit "B" on your keyboard and you will be suprised, no script is needed.

sorce link is not shown any more on illust page, except for manga mode.
Sample: http://www.pixiv.net/member_illust.php?mode=medium&illust_id=45715523

Now does nothing on the illusts page.
http://www.pixiv.net/member_illust.php?id=118433

Re: @yarrmateys:
the same problem,it seems that this issue only occurs on some new created illusts.