Exhibit 99.1

                            Explanation of Responses

(1) Represents shares of common stock issuable upon conversion of 83,917 shares
of Series A Convertible Preferred Stock convertible beginning on July 31, 2008
for the number of shares obtained by dividing the aggregate liquidation
preference of such shares ($100 per share) by the then-effective conversion
price. The number of shares of common stock issuable upon conversion of such
shares of Series A Convertible Preferred Stock will depend upon the conversion
price which will be the product of 0.83 multiplied by the volume weighted
average sale price on the New York Stock Exchange or other principal securities
exchange upon which the issuer's common stock is then listed for the 22 trading
days beginning on and including February 1, 2008 (disregarding the trading days
during such period having the highest and lowest volume weighted average sale
price), subject to certain adjustments contained in the issuer's Certificate of
Designation of 4.0% Series A Convertible Preferred Stock and 4.0% Series B
Convertible Preferred Stock. The holders of Series A Convertible Preferred Stock
have the right to elect several members of the issuer's board of directors. As a
result, the reporting person may be deemed a director by designation, though
nothing in this report shall be an admission that the reporting person is such a
director.

(2) No Expiration Date.