For your reference, below is a listing of Jewish holidays for this year.

Holiday	5771
Rosh Hashanah	Sep 8, 2010
Yom Kippur	Sep 17, 2010
Sukkot	Sep 22, 2010
Simchat Torah	Sep 29, 2010
Chanukah	Dec 1, 2010
Tu B'shvat	Jan 19, 2011
Purim	Mar 19, 2011
Pesach	Apr 18, 2011
Yom Hashoah	Apr 30, 2011
Yom Ha'Atzma-Ut	May 8, 2011
Shavuot	Jun 7, 2011

A description of each holiday can be accessed by following its respective link to the URJ Calendar of Jewish Holidays.