EXHIBIT 1
---------
AGREEMENT AS TO JOINT FILING OF SCHEDULE 13G
--------------------------------------------
Each of the undersigned hereby affirms that it is individually eligible to use
Schedule 13G, and agrees that this Schedule 13G is filed on its behalf.
Dated: February 11, 2009
CITIGROUP GLOBAL MARKETS INC.
By: /s/ Riqueza X. Xxxxxxx
--------------------------------------------
Name: Riqueza X. Xxxxxxx
Title: Assistant Secretary
CITIGROUP FINANCIAL PRODUCTS INC.
By: /s/ Riqueza X. Xxxxxxx
--------------------------------------------
Name: Riqueza X. Xxxxxxx
Title: Assistant Secretary
CITIGROUP GLOBAL MARKETS HOLDINGS INC.
By: /s/ Riqueza X. Xxxxxxx
--------------------------------------------
Name: Riqueza X. Xxxxxxx
Title: Assistant Secretary
CITIGROUP INC.
By: /s/ Riqueza X. Xxxxxxx
--------------------------------------------
Name: Riqueza X. Xxxxxxx
Title: Assistant Secretary
