POWER OF ATTORNEY

Know all men by these presents that Jacques Garaialde does hereby make,
constitute and appoint William J. Janetschek and Richard J. Kreider, or either
one of them, as a true and lawful attorney-in-fact of the undersigned with full
powers of substitution and revocation, for and in the name, place and stead of
the undersigned (both in the undersigned's individual capacity and as a member
of any limited liability company or as a partner of any partnership for which
the undersigned is otherwise authorized to sign), to execute and deliver such
forms as may be required to be filed from time to time with the Securities and
Exchange Commission with respect to: (i) Sections 13(d) and 16(a) of the
Securities Exchange Act of 1934, as amended (the "Act"), including without
limitation, Schedule 13D, Schedule 13G, statements on Form 3, Form 4 and Form 5
and (ii) in connection with any applications for EDGAR access codes, including
without limitation the Form ID.

                                        /s/ Jacques Garaialde
                                        ----------------------------------------
                                        Name: Jacques Garaialde

Date: July 31, 2005