This is written by well known Orthodox Jew Moshe Shulman who often debates with Messianic Jews. I have kind of liked Moshe, he seems intelligent and dialogues respectfully.
Here he seems to think that the tradition amongst Chassidic Jews slaughtering chickens at Yom Kippur is taking on a sacrifice as the Jewish messiah though, oh dear how daft are xmessianic to put this on their web site!!!
http://www.xmessianic.co.il/?CategoryID=177&ArticleID=140 In Hebrew, use Chrome to view this in English.