in the secrets of Simon yohai(Jewish eschatology )it says when the eastern grown has fallen in Damascus the messiah will appear,it also says that when u see a star in the east,the messiah would appear,with everything goin on in Syria I think now we just have to wait for the star of Israel

type in menahem amiel on google Sefer zerubbabel should come up,click on it then scroll down to the index and you'll see all the books

This is very interesting and appears to give some info regarding the timing of the AC , it comes from the link that the OP was talking about >>>

<font size="2">The word is true.  Four hundred and twenty years after the city and Temple have been rebuilt, they will be destroyed a second time.  Twenty years after the building of the city of Rome, after seventy kings corresponding to the seventy nations have ruled in it, when ten kings have finished their reigns, the tenth king will come.  He will destroy the sanctuary, stop the daily offering, the ‘saintly people’ will be dispersed, and he will hand them over to destruction, despoiling, and panic.  Many of them will perish due to their faithfulness to Torah, but (others) will abandon the Torah of the Lord and worship their (i.e., Rome’s) idols.  “When they stumble, a little help will provide assistance” (Dan 11:34).  From the time that the daily offering ceases and the wicked ones install the one whose name is ‘abomination’ in the Temple, at the end of nine hundred and ninety years, the deliverance of the Lord will take place—“when the power of the holy people is shattered” (Dan 12:7)—to redeem them and to gather them by means of the Lord’s Messiah.

http://religiousstudies.uncc.edu/people/jcreeves/sefer_zerubbabel.htm