ESTATED BYLAWS
                                      OF
                                 LIFEN, INC.


                                  ARTICLE I
                                   OFFICES


     Section 1. Registered Office.  The registered office shall be in the City
of Dover, County of Kent, State of Delaware.

     Section 2. Other Offices.  The corporation may also have offices at such
other places both within and without the State of Delaware as the Board of
Directors may from time to time determine or the business of the corporation may
require.


                                 ARTICLE II
                         MEETINGS OF STOCKHOLDERS

     Section 1. Place of Meetings.  All meetings of the stockholders for the
election of Directors shall be held in the City of San Francisco, State of
California, at such place as may be fixed from time to time by the Board of
Directors, or at such other place either within or without the State of
California as shall be designated from time to time by the Board of Directors
and stated in the notice of the meeting.  Meetings of stockholders for any other
purpose may be held at such time and place, within or without the State of
California, as shall be stated in the notice of the meeting or in a duly
executed waiver of notice thereof.

     Section 2. Annual Meeting.

	(a) The annual meeting of the stockholders of the corporation, for the
purpose of election of Directors and for such other business as may lawfully
come before it, shall be held on such date and at such time as may be designated
from time to time by the Board of Directors.

	(b) At an annual meeting of the stockholders, only such business shall
be conducted as shall have been properly brought before the meeting.  To be
properly brought before an annual meeting, business must be:  (A) specified in
the notice of meeting (or any supplement thereto) given by or at the direction
of the Board of Directors, (B) otherwise properly brought before the meeting by
or at the direction of the Board of Directors, or (C) otherwise properly brought
before the meeting by a stockholder.  For business to be properly brought before
an annual meeting by a stockholder, the stockholder must have given timely
notice thereof in writing to the Secretary of the corporation.  To be timely, a
stockholder's notice must be delivered to or mailed and received at the
principal executive offices of the corporation no later than the first
anniversary of the date specified in the corporation's proxy statement released
to stockholders in connection with the previous year's annual meeting of
stockholders, which date shall be not less than one hundred twenty (120)
calendar days in advance of the date of such proxy statement; provided, however,
that in the event that no annual meeting was held in the previous year or the
date of the annual meeting has been changed by more than thirty (30) days from
the date contemplated at the time of the previous year's proxy statement, notice
by the stockholder to be timely must be so received a reasonable time before
the solicitation is made.  A stockholder's notice to the Secretary shall set
forth as to each matter the stockholder proposes to bring before the annual
meeting:  (i) a brief description of the business desired to be brought before
the annual meeting and the reasons for conducting such business at the annual
meeting, (ii) the name and address, as they appear on the corporation's books,
of the stockholder proposing such business, (iii) the class and number of shares
of the corporation which are beneficially owned by the stockholder, (iv) any
material interest of the stockholder in such business and (v) any other
information that is required to be provided by the stockholder pursuant to
Regulation 14A under the Securities Exchange Act of 1934, as amended (the "1934
Act"), in such stockholder's capacity as a proponent to a stockholder proposal.
In addition to the foregoing, in order to include information with respect to a
stockholder proposal in the proxy statement and form of proxy for a
stockholder's meeting, stockholders must provide notice as required by the
regulations promulgated under the 1934 Act to the extent such regulations
require notice that is different from the notice required above.
Notwithstanding anything in these Bylaws to the contrary, no business shall be
conducted at any annual meeting except in accordance with the procedures set
forth in this paragraph (b) of this Section 2.  The chairman of the annual
meeting shall, if the facts warrant, determine and declare at the meeting that
business was not properly brought before the meeting and in accordance with the
provisions of this paragraph (b), and, if he or she should so determine, the
chairman shall so declare at the meeting that any such business not properly
brought before the meeting shall not be transacted.

	(c) Only persons who are nominated in accordance with the procedures set
forth in this paragraph (c) shall be eligible for election as Directors.
Nominations of persons for election to the Board of Directors of the corporation
may be made at a meeting of stockholders by or at the direction of the Board of
Directors or by any stockholder of the corporation entitled to vote in the
election of Directors at the meeting who complies with the notice procedures set
forth in this paragraph (c).  Such nominations, other than those made by or at
the direction of the Board of Directors, shall be made pursuant to timely notice
in writing to the Secretary of the corporation in accordance with the provisions
of paragraph (b) of this Section 2.  Such stockholder's notice shall set forth
(i) as to each person, if any, whom the stockholder proposes to nominate for
election or re-election as a Director:  (A) the name, age, business address and
residence address of such person, (B) the principal occupation or employment of
such person, (C) the class and number of shares of the corporation that are
beneficially owned by such person, (D) a description of all arrangements or
understandings between the stockholder and each nominee and any other person or
persons (naming such person or persons) pursuant to which the nominations are to
be made by the stockholder, and (E) any other information relating to such
person that is required to be disclosed in solicitations of proxies for election
of Directors, or is otherwise required, in each case pursuant to Regulation 14A
under the 1934 Act (including without limitation such person's written consent
to being named in the proxy statement, if any, as a nominee and to serving as a
Director if elected); and (ii) as to such stockholder giving notice, the
information required to be provided pursuant to subitems (ii), (iii) and (iv) of
paragraph (b) of this Section 2.  At the request of the Board of Directors, any
person nominated by a stockholder for election as a Director shall furnish to
the Secretary of the corporation that information required to be set forth in
the stockholder's notice of nomination which pertains to the nominee.  No person
shall be eligible for election as a Director of the corporation unless nominated
in accordance with the procedures set forth in this paragraph (c).  The chairman
of the meeting shall, if the facts warrant, determine and declare at the meeting
that a nomination was not made in accordance with the procedures prescribed by
these Bylaws, and if the chairman should so determine, he or she shall so
declare at the meeting, and the defective nomination shall be disregarded.

     Section 3. Notice of Annual Meeting.  Written notice of the annual meeting
stating the place, date and hour of the meeting shall be given to each
stockholder entitled to vote at such meeting not less than ten (10) nor more
than sixty (60) days before the date of the meeting.

     Section 4. Voting List.  The officer who has charge of the stock ledger of
the corporation shall prepare and make, or have prepared and made, at least ten
(10) days before every meeting of stockholders, a complete list of the
stockholders entitled to vote at the meeting, arranged in alphabetical order,
and showing the address of each stockholder and the number of shares registered
in the name of each stockholder.  Such list shall be open to the examination of
any stockholder, for any purpose germane to the meeting, during ordinary
business hours, for a period of at least ten (10) days prior to the meeting,
either at a place within the city where the meeting is to be held, which place
shall be specified in the notice of the meeting, or, if not so specified, at the
place where the meeting is to be held.  The list shall also be produced and kept
at the time and place of the meeting during the whole time thereof, and may be
inspected by any stockholder who is present.

     Section 5. Special Meetings.  Special meetings of the stockholders, for any
purpose or purposes, unless otherwise prescribed by statute or by the
Certificate of Incorporation, as amended from time to time, may only be called
as provided in this Section 5 by the President, Chief Executive Officer or
Chairman of the Board and shall be called by the President or Secretary at the
request in writing of a majority of the Board of Directors.  Such request shall
state the purpose or purposes of the proposed meeting.  The place, date and time
of any special meeting shall be determined by the Board of Directors.  Such
determination shall include the record date for determining the stockholders
having the right of and to vote at such meeting.

     Section 6. Notice of Special Meeting.  Written notice of a special meeting
stating the place, date and hour of the meeting and the purpose or purposes for
which the meeting is called shall be given not less than ten (10) nor more than
sixty (60) days before the date of the meeting, to each stockholder entitled to
vote at such meeting.

     Section 7. Action at Special Meeting.  Business transacted at any special
meeting of stockholders shall be limited to the purposes stated in the notice.

     Section 8. Quorum and Adjournments.

	(a) The holders of a majority of the stock issued and outstanding and
entitled to vote thereat, present in person or represented by proxy, shall
constitute a quorum at all meetings of the stockholders for the transaction of
business except as otherwise provided by statute or by the Certificate of
Incorporation, as amended from time to time.  If, however, such quorum shall not
be present or represented at any meeting of the stockholders, the stockholders
entitled to vote thereat, present in person or represented by proxy, shall have
the power to adjourn the meeting from time to time, without notice other than
announcement at the meeting, until a quorum shall be present or represented.  At
such adjourned meeting at which a quorum shall be present or represented, any
business may be transacted which might have been transacted at the meeting as
originally notified.  If the adjournment is for more than thirty (30) days, or
if after the adjournment a new record date is fixed for the adjourned meeting,
a notice of the adjourned meeting shall be given to each stockholder of record
entitled to vote at the meeting.

	(b) When a quorum is present at any meeting, the vote of the holders of
a majority of the stock having voting power present in person or represented by
proxy shall decide any question brought before such meeting, unless the question
is one upon which by express provision of statute or of the Certificate of
Incorporation, as amended from time to time, a different vote is required, in
which case such express provision shall govern and control the decision of such
question.

     Section 9. Voting Rights.  Unless otherwise provided in the Certificate of
Incorporation, as amended from time to time, each stockholder shall at every
meeting of the stockholders be entitled to one (1) vote in person or by proxy
for each share of the capital stock having voting power held by such
stockholder, but no proxy shall be voted on after three (3) years from its date,
unless the proxy provides for a longer period.

     Section 10. Action Without Meeting.  No action shall be taken by the
stockholders of the corporation except at an annual or special meeting of
stockholders called in accordance with these Bylaws, and no action shall be
taken by the stockholders by written consent.


                                 ARTICLE III
                                  DIRECTORS

     Section 1. Classes, Number, Term of Office and Qualification.  The
Directors shall be classified into three classes as specified in the Certificate
of Incorporation.  At each annual meeting of stockholders following such initial
classification and election, Directors elected to succeed those Directors whose
terms expire shall be elected for a term of office to expire at the third
succeeding annual meeting of stockholders after their election.  Additional
directorships resulting from an increase in the number of Directors shall be
apportioned among the classes as equally as possible as determined by the Board
of Directors.  The number of Directors which shall constitute the whole Board
shall not be less than five (5) nor more than nine (9) Directors, and the exact
number shall be fixed by resolution of the Board of Directors, with the number
initially fixed at five (5).  The number of Directors shall be determined by
resolution of sixty-six and two-thirds percent (66 2/3%) of the Directors then
in office or by sixty-six and two-thirds percent (66 2/3%) of the stockholders
at the annual meeting of the stockholders, and each Director elected shall hold
office until his or her successor is elected and qualified.  Directors need not
be stockholders.

     Section 2. Vacancies.  Vacancies, including newly created directorships,
may be filled only by a majority percentage of the Directors then in office,
though less than a quorum, or by a sole remaining Director.  Each Director so
chosen shall hold office until a successor is duly elected and shall qualify or
until his or her earlier death, resignation or removal.  If there are no
Directors in office, then an election of Directors may be held in the manner
provided by statute.  If, at the time of filling any vacancy, the Directors then
in office shall constitute less than a majority of the whole Board (as
constituted immediately prior to any such increase), the Court of Chancery may,
upon application of any stockholder or stockholders holding at least ten percent
(10%) of the total number of the shares at the time outstanding having the right
to vote for such Directors, summarily order an election to be held to fill any
such vacancies, or to replace the Directors chosen by the Directors then in
office.

     Section 3. Powers.  The business of the corporation shall be managed by or
under the direction of its Board of Directors which may exercise all such powers
of the corporation and do all such lawful acts and things as are not by statute
or by the Certificate of Incorporation, as amended from time to time, or by
these Bylaws directed or required to be exercised or done by the stockholders.

     Section 4. Regular and Special Meetings.  The Board of Directors of the
corporation may hold meetings, both regular and special, either within or
without the State of California.

     Section 5. Annual Meeting. The annual meeting of the Board of Directors
shall be held without notice other than as provided for in this Bylaw
immediately after, and at the same place as, the annual meeting of stockholders.
In the event the annual meeting of the Board of Directors shall not be held
immediately after, and at the same place as, the annual meeting of stockholders,
the meeting may be held at such time and place as shall be specified in a notice
given as hereinafter provided for special meetings of the Board of Directors.

     Section 6. Notice of Regular Meetings.  Regular meetings of the Board of
Directors may be held without notice at such time and at such place as shall
from time to time be determined by the Board.

     Section 7. Notice of Special Meetings.  Special meetings of the Board may
be called by the Chief Executive Officer or President on no less than forty-
eight (48) hours notice to each Director either personally, or by telephone,
mail, telegram, facsimile or electronic mail; special meetings shall be called
by the Chief Executive Officer, President or Secretary in like manner and on
like notice on the written request of two Directors unless the Board consists of
only one Director, in which case special meetings shall be called by the Chief
Executive Officer, President or Secretary in like manner and on like notice on
the written request of the sole Director.  A written waiver of notice, signed by
the person entitled thereto, whether before or after the time of the meeting
stated therein, shall be deemed equivalent to notice.

     Section 8. Quorum.  At all meetings of the Board a majority of the
Directors shall constitute a quorum for the transaction of business and the act
of a majority of the Directors present at any meeting at which there is a quorum
shall be the act of the Board of Directors, except as may be otherwise
specifically provided by these Bylaws, by statute or by the Certificate of
Incorporation, as amended from time to time.  If a quorum shall not be present
at any meeting of the Board of Directors, the Directors present thereat may
adjourn the meeting from time to time, without notice other than announcement at
the meeting, until a quorum shall be present.

     Section 9. Action Without Meeting.  Unless otherwise restricted by the
Certificate of Incorporation, as amended from time to time, or these Bylaws, any
action required or permitted to be taken at any meeting of the Board of
Directors or of any committee thereof may be taken without a meeting, if all
members of the Board or committee, as the case may be, consent thereto in
writing, and the writing or writings are filed with the minutes of proceedings
of the Board or committee.

     Section 10. Meetings by Telephone Conference Calls.  Unless otherwise
restricted by the Certificate of Incorporation, as amended from time to time, or
these Bylaws, members of the Board of Directors, or any committee designated by
the Board of Directors, may participate in a meeting of the Board of Directors,
or any committee, by means of conference telephone, video conference or similar
communications equipment by means of which all persons participating in the
meeting can hear each other, and such participation in a meeting shall
constitute presence in person at the meeting.

     Section 11. Committees.  The Board of Directors may, by resolution passed
by a majority of the whole Board, designate one or more committees, each
committee to consist of one or more of the Directors of the corporation.  The
Board may designate one or more Directors as alternate members of any committee,
who may replace any absent or disqualified member at any meeting of the
committee.

	In the absence of disqualification of a member of a committee, the
member or members thereof present at any meeting and not disqualified from
voting, whether or not he, she or they constitute a quorum, may unanimously
appoint another member of the Board of Directors to act at the meeting in the
place of any such absent or disqualified member.

	Any such committee, to the extent provided in the resolution of the
Board of Directors, shall have and may exercise all the powers and authority of
the Board of Directors in the management of the business and affairs of the
corporation, and may authorize the seal of the corporation to be affixed to all
papers which may require it; but no such committee shall have the power or
authority in reference to amending the Certificate of Incorporation, as amended
from time to time, adopting an agreement of merger or consolidation,
recommending to the stockholders the sale, lease or exchange of all or
substantially all of the corporation's property and assets, recommending to the
stockholders a dissolution of the corporation or a revocation of a dissolution,
or amending the Bylaws of the corporation; and, unless the resolution or the
Certificate of Incorporation, as amended from time to time, expressly so
provide, no such committee shall have the power or authority to declare a
dividend or to authorize the issuance of stock.  Such committee or committees
shall have such name or names as may be determined from time to time by
resolution adopted by the Board of Directors.

	Each committee shall keep regular minutes of its meetings and report the
same to the Board of Directors when required.

     Section 12. Fees and Compensation.  Unless otherwise restricted by the
Certificate of Incorporation, as amended from time to time, or these Bylaws, the
Board of Directors shall have the authority to fix the compensation of
Directors.  The Directors may be paid their expenses, if any, of attendance at
each meeting of the Board of Directors and may be paid a fixed sum for
attendance at each meeting of the Board of Directors or a stated salary as
Director.  No such payment shall preclude any Director from serving the
corporation in any other capacity and receiving compensation therefor.  Members
of special or standing committees may be allowed like compensation for attending
committee meetings.

     Section 13. Removal.  Subject to any limitations imposed by law or the
Certificate of Incorporation, as amended from time to time, the Board of
Directors, or any individual Director, may be removed from office at any time
only with cause by the affirmative vote of the holders of at least two-thirds of
the outstanding shares entitled to vote at an election of Directors.


                                    ARTICLE IV
                                      NOTICES

     Section 1. Notice.  Whenever, under the provisions of statute or of the
Certificate of Incorporation, as amended from time to time, or of these Bylaws,
notice is required to be given to any Director or stockholder, it shall not be
construed to mean personal notice, but such notice may be given in writing, by
mail, addressed to such Director or stockholder, at his, her or its address as
it appears on the records of the corporation, with postage thereon prepaid, and
such notice shall be deemed to be given at the time when the same shall be
deposited in the United States mail.  Notice to Directors may also be given
personally, by telephone, including a voice messaging system or other system or
technology designed to record and communicate messages, telegram, facsimile,
electronic mail or other electronic means.

     Section 2. Waiver of Notice.  Whenever any notice is required to be given
under the provisions of statute or of the Certificate of Incorporation, as
amended from time to time, or of these Bylaws, a waiver thereof in writing,
signed by the person or persons entitled to said notice, whether before or after
the time stated therein, shall be deemed equivalent thereto.


                                    ARTICLE V
                                    OFFICERS

     Section 1. Enumeration.  The officers of the corporation shall be chosen by
the Board of Directors and shall include a Chief Executive Officer, a Chief
Financial Officer and a Secretary.  The Board of Directors may elect from among
its members a Chairman of the Board and a Vice Chairman of the Board.  The Board
of Directors may also choose a President, one or more Vice Presidents and one or
more Assistant Secretaries.  Any number of offices may be held by the same
person, unless the Certificate of Incorporation, as amended from time to time,
or these Bylaws otherwise provide.

	The compensation of all officers and agents of the corporation shall be
fixed by the Board of Directors, and no officer shall be prevented from
receiving such compensation by virtue of such officer also being a Director of
the corporation.

     Section 2. Election or Appointment.  The Board of Directors at its first
meeting after each annual meeting of stockholders shall choose a Chief Executive
Officer, Chief Financial Officer and a Secretary and may choose a President, one
or more Vice Presidents and one or more Assistant Secretaries.

The Board of Directors may appoint such other officers and agents as it shall
deem necessary who shall hold their offices for such terms and shall exercise
such powers and perform such duties as shall be determined from time to time by
the Board.

     Section 3. Tenure, Removal and Vacancies.  The officers of the corporation
shall hold office until their successors are chosen and qualified.  Any officer
elected or appointed by the Board of Directors may be removed at any time by the
affirmative vote of a majority of the Board of Directors.  Any vacancy occurring
in any office of the corporation shall be filled by the Board of Directors.

     Section 4. Chairman of the Board.  The Chairman of the Board, if any, shall
preside at all meetings of the Board of Directors and of the stockholders at
which he or she shall be present.  The Chairman of the Board shall have and may
exercise such powers as are, from time to time, assigned by the Board and as may
be provided by law.

     Section 5. Vice Chairman of the Board.  In the absence of the Chairman of
the Board, the Vice Chairman of the Board, if any, shall preside at all meetings
of the Board of Directors and of the stockholders at which he or she shall be
present.  The Vice Chairman of the Board shall have and may exercise such powers
as are, from time to time, assigned by the Board and as may be provided by law.

     Section 6. Chief Executive Officer.  The Chief Executive Officer of the
corporation shall, subject to the control of the Board of Directors, have
general supervision, direction and control of the business and the officers of
the corporation.  The Chief Executive Officer shall preside at all meetings of
the stockholders, and, in the absence or nonexistence of a Chairman of the Board
or Vice Chairman of the Board, the Chief Executive Officer shall preside at all
meetings of the Board of Directors.  The Chief Executive Officer shall have the
general powers and duties of management usually vested in the Chief Executive
Officer of a corporation, including general supervision, direction and control
of the business and supervision of other officers of the corporation, and shall
have such other powers and duties as may be prescribed by the Board of Directors
or these Bylaws.

	The Chief Executive Officer shall, without limitation, have the
authority to execute bonds, mortgages and other contracts requiring a seal,
under the seal of the corporation, except where required or permitted by law to
be otherwise signed and executed and except where the signing and execution
thereof shall be expressly delegated by the Board of Directors to some other
officer or agent of the corporation.

     Section 7. President.  Subject to such supervisory powers as may be given
by these Bylaws or the Board of Directors to the Chairman of the Board or the
Chief Executive Officer, if there be such officers, the President shall have
general supervision, direction and control of the business and supervision of
other officers of the corporation, and shall have such other powers and duties
as may be prescribed by the Board of Directors or these Bylaws.  In the event a
Chief Executive Officer shall not be appointed, the President shall have the
duties of such office.

     Section 8. Vice Presidents.  The Vice President, or if there shall be more
than one, the Vice Presidents in the order determined by the Board of Directors,
shall, in the absence or disability of the President, act with all of the powers
and be subject to all the restrictions of the President.  The Vice Presidents
shall also perform such other duties and have such other powers as the Board of
Directors, the Chief Executive Officer, the President or these Bylaws may, from
time to time, prescribe.

     Section 9. Secretary.  The Secretary shall attend all meetings of the Board
of Directors, all meetings of the committees thereof and all meetings of the
stockholders and record all the proceedings of the meetings in a book or books
to be kept for that purpose.  Under the Chief Executive Officer's or President's
supervision, the Secretary shall give, or cause to be given, all notices
required to be given by these Bylaws or by law; shall have such powers and
perform such duties as the Board of Directors, the Chief Executive Officer, the
President or these Bylaws may, from time to time, prescribe; and shall have
custody of the seal of the corporation.  The Secretary, or an Assistant
Secretary, shall have authority to affix the seal of the corporation to any
instrument requiring it and when so affixed, it may be attested by his or her
signature or by the signature of such Assistant Secretary.  The Board of
Directors may give general authority to any other officer to affix the seal of
the corporation and to attest the affixing by his or her signature.

     Section 10. Assistant Secretary.  The Assistant Secretary, if any, or if
there be more than one, the Assistant Secretaries in the order determined by the
Board of Directors, shall, in the absence, disability or refusal to act of the
Secretary, perform the duties and exercise the powers of the Secretary and shall
perform such other duties and have such other powers as the Board of Directors,
the Chief Executive Officer, the President, the Secretary or these Bylaws may,
from time to time, prescribe.

     Section 11. Chief Financial Officer.  The Chief Financial Officer shall act
as Treasurer and shall have the custody of the corporate funds and securities
and shall keep full and accurate accounts of receipts and disbursements in books
belonging to the corporation and shall deposit all moneys and other valuable
effects in the name and to the credit of the corporation in such depositories as
may be designated by the Board of Directors.  The Chief Financial Officer may
alternatively be designated by the title "Treasurer."

	The Chief Financial Officer shall disburse the funds of the corporation
as may be ordered by the Board of Directors, taking proper vouchers for such
disbursements, and shall render to the Chief Executive Officer or, if there be
no Chief Executive Officer, the President and the Board of Directors, at its
regular meetings, or when the Board of Directors so requires, an account of all
his or her transactions as Chief Financial Officer and of the financial
condition of the corporation.

	If required by the Board of Directors, the Chief Financial Officer shall
 give the corporation a bond (which shall be renewed every six years) in such
sum and with such surety or sureties as shall be satisfactory to the Board of
Directors for the faithful performance of the duties of his or her office and
for the restoration to the corporation, in case of his or her death,
resignation, retirement or removal from office, of all books, papers, vouchers,
money and other property of whatever kind in the Chief Financial Officer's
possession or under his or her control belonging to the corporation.

     Section 12. Other Officers, Assistant Officers and Agents.  Officers,
assistant officers and agents, if any, other than those whose duties are
provided for in these Bylaws, shall have such authority and perform such duties
as may from time to time be prescribed by the Board of Directors, the Chief
Executive Officer or the President.

     Section 13. Absence or Disability of Officers.  In the case of the absence
or disability of any officer of the corporation and of any person hereby
authorized to act in such officer's place during such officer's absence or
disability, the Board of Directors may delegate the powers and duties of such
officer to any officer or to any Director, or to any other person who it may
select.


                                   ARTICLE VI
                             CERTIFICATES OF STOCK

     Section 1. Certificates of Stock.  Every holder of stock in the corporation
shall be entitled to have a certificate, signed by, or in the name of the
corporation by, the Chairman or Vice Chairman of the Board of Directors, or the
Chief Executive Officer or the President or a Vice President and the Chief
Financial Officer or an Assistant Chief Financial Officer, or the Secretary or
an Assistant Secretary of the corporation, certifying the number of shares owned
by him or her in the corporation.

	Certificates may be issued for partly paid shares and in such case upon
the face or back of the certificates issued to represent any such partly paid
shares, the total amount of the consideration to be paid therefor, and the
amount paid thereon shall be specified.

	If the corporation shall be authorized to issue more than one class of
stock or more than one series of any class, the powers, designations,
preferences and relative, participating, optional or other special rights of
each class of stock or series thereof and the qualifications, limitations or
restrictions of such preferences and/or rights shall be set forth in full or
summarized on the face or back of the certificate which the corporation shall
issue to represent such class or series of stock, provided that, except as
otherwise provided in Section 202 of the General Corporation Law of Delaware, in
lieu of the foregoing requirements, there may be set forth on the face or back
of the certificate which the corporation shall issue to represent such class or
series of stock, a statement that the corporation will furnish without charge to
each stockholder who so requests the powers, designations, preferences and
relative, participating, optional or other special rights of each class of stock
or series thereof and the qualifications, limitations or restrictions of such
preferences and/or rights.

     Section 2. Execution of Certificates.  Any or all of the signatures on the
certificate may be facsimile.  In case any officer, transfer agent or registrar
who has signed or whose facsimile signature has been placed upon a certificate
shall have ceased to be such officer, transfer agent or registrar before such
certificate is issued, it may be issued by the corporation with the same effect
as if he or she were such officer, transfer agent or registrar at the date of
issue.

     Section 3. Lost Certificates.  The Board of Directors may direct a new
certificate or certificates to be issued in place of any certificate or
certificates theretofore issued by the corporation alleged to have been lost,
stolen or destroyed, upon the making of an affidavit of that fact by the person
claiming the certificate of stock to be lost, stolen or destroyed.  When
authorizing such issue of a new certificate or certificates, the Board of
Directors may, in its discretion and as a condition precedent to the issuance
thereof, require the owner of such lost, stolen or destroyed certificate or
certificates, or the owner's legal representative, to advertise the same in such
manner as it shall require and/or to give the corporation a bond in such sum as
it may direct as indemnity against any claim that may be made against the
corporation with respect to the certificate alleged to have been lost, stolen or
destroyed.

     Section 4. Transfer of Stock.  Upon surrender to the corporation or the
transfer agent of the corporation of a certificate for shares duly endorsed or
accompanied by proper evidence of succession, assignation or authority to
transfer, it shall be the duty of the corporation to issue a new certificate to
the person entitled thereto, cancel the old certificate and record the
transaction upon its books.

     Section 5. Fixing Record Date.  In order that the corporation may determine
the stockholders entitled to notice of or to vote at any meeting of stockholder
or any adjournment thereof, or entitled to receive payment of any dividend or
other distribution or allotment of any rights, or entitled to exercise any
rights in respect of any change, conversion or exchange of stock or for the
purpose of any other lawful action, the Board of Directors may fix, in advance,
a record date, which shall not be more than sixty (60) nor less than ten (10)
days before the date of such meeting, nor more than sixty (60) days prior to any
other action.  A determination of stockholders of record entitled to notice of
or to vote at a meeting of stockholders shall apply to any adjournment of the
meeting; provided, however, that the Board of Directors may fix a new record
date for the adjourned meeting.

     Section 6. Registered Stockholders.  The corporation shall be entitled to
recognize the exclusive right of a person registered on its books as the owner
of shares to receive dividends, and to vote as such owner, and to hold liable
for calls and assessments a person registered on its books as the owner of
shares and shall not be bound to recognize any equitable or other claim to or
interest in such share or shares on the part of any other person, whether or no
it shall have express or other notice thereof, except as otherwise provided by
the laws of Delaware.


                                  ARTICLE VII
                                INDEMNIFICATION

     Section 1. Indemnification of Directors and Executive Officers.  The
corporation shall indemnify its Directors and executive officers to the fullest
extent not prohibited by the Delaware General Corporation Law; provided,
however, that the corporation may limit the extent of such indemnification by
individual contracts with its Directors and executive officers; and, provided,
further, that the corporation shall not be required to indemnify any Director or
executive officer in connection with any proceeding (or part thereof) initiated
by such person or any proceeding by such person against the corporation or its
Directors, officers, employees or other agents unless (i) such indemnification
is expressly required to be made by law, (ii) the proceeding was authorized by
the Board of Directors of the corporation, and (iii) such indemnification is
provided by the corporation, in its sole discretion, pursuant to the powers
vested in the corporation under the Delaware General Corporation Law.

     Section 2. Indemnification of Other Officers, Employees and Other Agents.
The corporation shall have power to indemnify its other officers, employees and
other agents to the fullest extent permitted by the Delaware General Corporation
Law.

     Section 3. Good Faith.

	(a) For purposes of any determination under this Bylaw, a Director or
officer shall be deemed to have acted in good faith and in a manner he or she
reasonably believed to be in or not opposed to the best interests of the
corporation, and, with respect to any criminal action or proceeding, to have had
no reasonable cause to believe that his or her conduct was unlawful, if such
Director's or officer's action is based on information, opinions, reports and
statements, including financial statements and other financial data, in each
case prepared or presented by:

	     (1) one or more officers or employees of the corporation whom the
Director or executive officer believed to be reliable and competent in the
matters presented;

	     (2) counsel, independent accountants or other persons as to matters
which the Director or executive officer believed to be within such person's
professional competence; and

	     (3) with respect to a Director, a committee of the Board upon which
such Director does not serve, as to matters within such committee's designated
authority, which committee the Director believes to merit confidence; so long
as, in each case, the Director or executive officer acts without knowledge that
would cause such reliance to be unwarranted.

	(b) The termination of any proceeding by judgment, order, settlement,
conviction or upon a plea of nolo contendere or its equivalent shall not, of
itself, create a presumption that the person did not act in good faith and in a
manner which such person reasonably believed to be in or not opposed to the best
interests of the corporation, and, with respect to any criminal proceeding,
that such person had reasonable cause to believe that his or her consent was
unlawful.

	(c) The provisions of this Section 3 shall not be deemed to be exclusive
or to limit in any way the circumstances in which a person may be deemed to have
met the applicable standard of conduct set forth by the Delaware General
Corporation Law.

     Section 4. Expenses.  The corporation shall advance, prior to the final
disposition of any proceeding, promptly following request therefor, all
expenses incurred by any Director or officer in connection with such proceeding
upon receipt of an undertaking by or on behalf of such person to repay said
amounts if it should be determined ultimately that such person is not entitled
to be indemnified under this Bylaw or otherwise.

	Notwithstanding the foregoing, unless otherwise determined pursuant to
Section 4 of this Bylaw, no advance shall be made by the corporation if a
determination is reasonably and promptly made (i) by the Board of Directors by
a majority vote of a quorum consisting of Directors who were not parties to the
proceeding, or (ii) if such quorum is not obtainable, or, even if obtainable, a
quorum of disinterested Directors so directs, by independent legal counsel in a
written opinion, that the facts known to the decision-making party at the time
such determination is made demonstrate clearly and convincingly that such person
acted in bad faith or in a manner that such person did not believe to be in or
not opposed to the best interests of the corporation.

     Section 5. Enforcement.  Without the necessity of entering into an express
contract, all rights to indemnification and advances to Directors and officers
under this Bylaw shall be deemed to be contractual rights and be effective to
the same extent and as if provided for in a contract between the corporation and
the Director or officer.  Any right to indemnification or advances granted by
this Bylaw to a Director or officer shall be enforceable by or on behalf of the
person holding such right in any court of competent jurisdiction if (i) the
claim for indemnification or advances is denied, in whole or in part, or (ii) no
disposition of such claim is made within ninety (90) days of request therefor.
The claimant in such enforcement action, if successful in whole or in part,
shall be entitled to be paid also the expense of prosecuting his or her claim.
The corporation shall be entitled to raise as a defense to any such action that
the claimant has not met the standards of conduct that make it permissible under
the Delaware General Corporation Law for the corporation to indemnify the
claimant for the amount claimed.  Neither the failure of the corporation
(including its Board of Directors, independent legal counsel or its
stockholders) to have made a determination prior to the commencement of such
action that indemnification of the claimant is proper in the circumstances
because he or she has met the applicable standard of conduct set forth in the
Delaware General Corporation Law, nor an actual determination by the corporation
(including its Board of Directors, independent legal counsel or its
stockholders) that the claimant has not met such applicable standard of conduct,
shall be a defense to the action or create a presumption that the claimant has
not met the applicable standard of conduct.

     Section 6. Non-Exclusivity of Rights.  The rights conferred on any person
by this Bylaw shall not be exclusive of any other right which such person may
have or hereafter acquire under any statute, provision of the Certificate of
Incorporation, as amended from time to time, Bylaws, agreement, vote of
stockholders or disinterested Directors or otherwise, both as to action in such
person's official capacity and as to action in another capacity while holding
office.  The corporation is specifically authorized to enter into individual
contracts with any or all of its Directors, officers, employees or agents
respecting indemnification and advances, to the fullest extent not prohibited by
the Delaware General Corporation Law.

     Section 7. Survival of Rights.  The rights conferred on any person by this
Bylaw shall continue as to a person who has ceased to be a Director, officer,
employee or other agent and shall inure to the benefit of the heirs, executors
and administrators of such a person.

     Section 8. Insurance.  To the fullest extent permitted by the Delaware
General Corporation Law, the corporation, upon approval by the Board of
Directors, may purchase insurance on behalf of any person required or permitted
to be indemnified pursuant to this Bylaw.

     Section 9. Amendments.  Any repeal or modification of this Bylaw shall only
be prospective and shall not affect the rights under this Bylaw in effect at the
time of the alleged occurrence of any action or omission to act that is the
cause of any proceeding against any agent of the corporation.

     Section 10. Saving Clause.  If this Bylaw or any portion hereof shall be
invalidated on any ground by any court of competent jurisdiction, then the
corporation shall nevertheless indemnify each Director and officer to the full
extent not prohibited by any applicable portion of this Bylaw that shall not
have been invalidated, or by any other applicable law.

     Section 11. Certain Definitions.  For the purposes of this Bylaw, the
following definitions shall apply:

	(a) The term "proceeding" shall be broadly construed and shall include,
without limitation, the investigation, preparation, prosecution, defense,
settlement, arbitration and appeal of, and the giving of the testimony in, any
threatened, pending or completed action, suit or proceeding, whether civil,
criminal, administrative or investigative.

	(b) The term "expenses" shall be broadly construed and shall include,
without limitation, court costs, attorneys' fees, witness fees, fines, amounts
paid in settlement or judgment and any other costs and expenses of any nature or
kind incurred in connection with any proceeding.

	(c) The term the "corporation" shall include, in addition to the
resulting corporation, any constituent corporation (including any constituent of
 a constituent) absorbed in a consolidation or merger which, if its separate
existence had continued, would have had power and authority to indemnify its
Directors, officers, and employees or agents, so that any person who is or was a
Director, officer, employee or agent of such constituent corporation, or is or
was serving at the request of such constituent corporation as a Director,
officer, employee or agent of another corporation, partnership, joint venture,
trust or other enterprise, shall stand in the same position under the provisions
of this Bylaw with respect to the resulting or surviving corporation as such
person would have with respect to such constituent corporation if its separate
existence had continued.

	(d) References to a "Director," "officer," "employee," or "agent" of the
corporation shall include, without limitation, situations where such person is
serving at the request of the corporation as a Director, officer, employee,
trustee or agent of another corporation, partnership, joint venture, trust or
other enterprise.

	(e) References to "other enterprises" shall include employee benefit
plans; references to "fines" shall include any excise taxes assessed on a person
with respect to an employee benefit plan; and references to "serving at the
request of the corporation" shall include any service as a Director, officer,
employee or agent of the corporation which imposes duties on, or involves
services by, such Director, officer, employee, or agent with respect to an
employee benefit plan, its participants, or beneficiaries; and a person who
acted in good faith and in a manner such person reasonably believed to be in the
interest of the participants and beneficiaries of an employee benefit plan shall
be deemed to have acted in a manner "not opposed to the best interests of the
corporation" as referred to in this Bylaw.


                                   ARTICLE VIII
                                GENERAL PROVISIONS

     Section 1. Declaration of Dividends.  Dividends upon the capital stock of
the corporation, subject to the provisions of the Certificate of Incorporation,
as amended from time to time, if any, may be declared by the Board of Directors
at any regular or special meeting, pursuant to law.  Dividends may be paid in
cash, in property, or in shares of the capital stock, subject to the provisions
of the Certificate of Incorporation, as amended from time to time.

     Section 2. Dividend Reserve.  Before payment of any dividend, there may be
set aside out of any funds of the corporation available for dividends such sum
or sums as the Directors from time to time, in their absolute discretion, think
proper as a reserve or reserves to meet contingencies, or for equalizing
dividends, or for repairing or maintaining any property of the corporation, or
for such other purposes as the Directors shall think conducive to the interest
of the corporation, and the Directors may modify or abolish any such reserve in
the manner in which it was created.

     Section 3. Execution of Corporate Instruments.  All checks or demands for
money and notes of the corporation shall be signed by such officer or officers
or such other person or persons as the Board of Directors may from time to time
designate.

     Section 4. Fiscal Year.  The fiscal year of the corporation shall be fixed
by resolution of the Board of Directors.

     Section 5. Corporate Seal.  The Board of Directors may adopt a corporate
seal having inscribed thereon the name of the corporation, the year of its
organization and the words "Corporate Seal, Delaware."  The seal may be used by
causing it or a facsimile thereof to be impressed or affixed or reproduced or
otherwise.


                                  ARTICLE IX
                                  AMENDMENTS

     Section 1. Amendments.

	(a) Except as otherwise set forth in Section 9 of Article VII of these
Bylaws, the Bylaws may be altered or amended or new Bylaws adopted by the
affirmative vote of a majority of the voting power of all of the then-
outstanding shares of capital stock of the corporation entitled to vote
generally in the election of Directors (the "Voting Stock").  The Board of
Directors shall also have the power, if such power is conferred upon the Board
of Directors by the Certificate of Incorporation, as amended from time to time,
to adopt, amend or repeal Bylaws by a vote of the majority of the Board of
Directors unless a greater or different vote is required pursuant to the
provisions of the Bylaws, the Certificate of Incorporation or any applicable
provision of law.

	(b) Notwithstanding any other provisions of these Bylaws or any
provision of law which might otherwise permit a lesser vote or no vote, but in
addition to any affirmative vote of the holders of any particular class or
series of the Voting Stock required by law, the Certificate of Incorporation,
as amended from time to time, or any Preferred Stock Designation (as the term is
defined in the Certificate of Incorporation, as amended from time to time), the
affirmative vote of the holders of at least sixty-six and two-thirds percent
(66-2/3%) of the voting power of all of the then-outstanding shares of the
Voting Stock, voting together as a single class, shall be required to alter,
amend or repeal this paragraph (b) or Section 2, Section 5 or Section 10 of
Article II or Section 1, Section 2 or Section 13 of Article III of these Bylaws.

	(c) Notwithstanding any other provisions of these Bylaws or any
provision of law which might otherwise permit a lesser vote or no vote, but in
addition to any affirmative vote of the holders of any particular class or
series of the Voting Stock required by law, the Certificate of Incorporation, as
amended from time to time, or any Preferred Stock Designation (as the term is
defined in the Certificate of Incorporation, as amended from time to time), the
affirmative vote of at least sixty-six and two-thirds percent (66-2/3%) of the
Directors, shall be required to alter, amend or repeal this paragraph (c) or
Section 2, Section 5 or Section 10 of Article II or Section 1, Section 2 or
Section 13 of Article III of these Bylaws.




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                         CERTIFICATE OF SECRETARY

The undersigned, being the Secretary of Lifen, Inc., a Delaware corporation,
does hereby certify the foregoing to be the Bylaws of said Corporation, as
adopted by the requisite vote or votes of the stockholders or Directors of the
Corporation and which remain in full force and effect as of the date hereof.

    Executed at San Francisco, California effective as of August 15, 2002.


						/s/ Gera Laun
						-------------------------------
						    Gera Laun
						    Secretary