PURIM ON SHABBOS
When Purim in walled cities, such as Yerushalayim, falls on Shabbos, when are the Mitzvos of Purim fulfilled?
The Gezerah of Rabbah prohibits reading the Megillah on Shabbos, lest one come to carry it in the Reshus ha'Rabim. What are the parameters as to which Mitzvos this Gezerah is applied to?
The Gemara mandates that when Purim falls on Shabbos, the Chacham speaks publicly about the day (Rashi - about the Megilah). Why don't we do so even when Purim falls during the week?
TRAVEL AND PURIM MESHULASH
If the resident of an un-walled city travelled to Yerushalayim on Friday the 14th, can he hear the morning Megillah reading from a Yerushalayim resident (who is reading early this year due to Shabbos)? If he stays for Shabbos, does he assume the obligations of Yerushalayim's Purim as well (e.g., Mishloach Manos and a Seudah on Sunday the 16th)?


