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                                                                    EXHIBIT 10.6

                               EXELIXIS, INC.
                      2000 EMPLOYEE STOCK PURCHASE PLAN

               ADOPTED BY BOARD OF DIRECTORS January 27, 2000
                   APPROVED BY STOCKHOLDERS March 15, 2000
                           TERMINATION DATE: NONE


1.  PURPOSE.

    (a)  The purpose of the Plan is to provide a means by which Employees of the
Company and certain designated Affiliates may be given an opportunity to
purchase Shares of the Company.

    (b)  The Company, by means of the Plan, seeks to retain the services of such
Employees, to secure and retain the services of new Employees and to provide
incentives for such persons to exert maximum efforts for the success of the
Company and its Affiliates.

    (c)  The Company intends that the Rights to purchase Shares granted under
the Plan be considered options issued under an "employee stock purchase plan,"
as that term is defined in Section 423(b) of the Code.

2.  DEFINITIONS.

    (a)  "Affiliate" means any parent corporation or subsidiary corporation,
whether now or hereafter existing, as those terms are defined in Sections 424(e)
and (f), respectively, of the Code.

    (b)  "Board" means the Board of Directors of the Company.

    (c)  "Calculation Date" means the last day of each fiscal year of the
Company.

    (d)  "Code" means the United States Internal Revenue Code of 1986, as
amended.

    (e)  "Committee" means a Committee appointed by the Board in accordance with
subsection 3(c) of the Plan.

    (f)  "Company" means Exelixis, Inc., a Delaware corporation.

    (g)  "Diluted Shares Outstanding" means the number of outstanding shares of
Common Stock on the Calculation Date, plus the number of shares of Common Stock
issuable on the Calculation Date assuming the conversion of all outstanding
preferred stock and convertible notes, and the additional number of dilutive
Common Stock equivalent shares outstanding as the result of any options or
warrants outstanding during the fiscal year, calculated using the treasury stock
method.

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    (h)  "Director" means a member of the Board.

    (i)  "Eligible Employee" means an Employee who meets the requirements set
forth in the Offering for eligibility to participate in the Offering.

    (j)  "Employee" means any person, including Officers and Directors, employed
by the Company or an Affiliate of the Company. Neither service as a Director nor
payment of a director's fee shall be sufficient to constitute "employment" by
the Company or the Affiliate.

    (k)  "Employee Stock Purchase Plan" means a plan that grants rights intended
to be options issued under an "employee stock purchase plan," as that term is
defined in Section 423(b) of the Code.

    (l)  "Exchange Act" means the United States Securities Exchange Act of 1934,
as amended.

    (m)  "Fair Market Value" means the value of a security, as determined in
good faith by the Board. If the security is listed on any established stock
exchange or traded on the Nasdaq National Market or the Nasdaq SmallCap Market,
then, except as otherwise provided in the Offering, the Fair Market Value of the
security shall be the closing sales price (rounded up where necessary to the
nearest whole cent) for such security (or the closing bid, if no sales were
reported) as quoted on such exchange or market (or the exchange or market with
the greatest volume of trading in the relevant security of the Company) on the
trading day prior to the relevant determination date, as reported in The Wall
Street Journal or such other source as the Board deems reliable.

    (n)  "Non-Employee Director" means a Director who either (i) is not a
current Employee or Officer of the Company or its parent or subsidiary, does not
receive compensation (directly or indirectly) from the Company or its parent or
subsidiary for services rendered as a consultant or in any capacity other than
as a Director (except for an amount as to which disclosure would not be required
under Item 404(a) of Regulation S-K promulgated pursuant to the Securities Act
("Regulation S-K")), does not possess an interest in any other transaction as to
which disclosure would be required under Item 404(a) of Regulation S-K, and is
not engaged in a business relationship as to which disclosure would be required
under Item 404(b) of Regulation S-K; or (ii) is otherwise considered a "non-
employee director" for purposes of Rule 16b-3.

    (o)  "Offering" means the grant of Rights to purchase Shares under the Plan
to Eligible Employees.

    (p)  "Offering Date" means a date selected by the Board for an Offering to
commence.

    (q)  "Outside Director" means a Director who either (i) is not a current
employee of the Company or an "affiliated corporation" (within the meaning of
the Treasury regulations promulgated under Section 162(m) of the Code), is not a
former employee of the Company or an "affiliated corporation" receiving
compensation for prior services (other than benefits under a tax

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qualified pension plan), was not an officer of the Company or an "affiliated
corporation" at any time, and is not currently receiving direct or indirect
remuneration from the Company or an "affiliated corporation" for services in any
capacity other than as a Director, or (ii) is otherwise considered an "outside
director" for purposes of Section 162(m) of the Code .

     (r)  "Participant" means an Eligible Employee who holds an outstanding
Right granted pursuant to the Plan or, if applicable, such other person who
holds an outstanding Right granted under the Plan.

    (s)  "Plan" means this 2000 Employee Stock Purchase Plan.

    (t)  "Purchase Date" means one or more dates established by the Board during
an Offering on which Rights granted under the Plan shall be exercised and
purchases of Shares carried out in accordance with such Offering.

    (u)  "Right" means an option to purchase Shares granted pursuant to the
Plan.

    (v)  "Rule 16b-3" means Rule 16b-3 of the Exchange Act or any successor to
Rule 16b-3 as in effect with respect to the Company at the time discretion is
being exercised regarding the Plan.

    (w)  "Securities Act" means the United States Securities Act of 1933, as
amended.

    (x)  "Share" means a share of the common stock of the Company.

3.  ADMINISTRATION.

    (a)  The Board shall administer the Plan unless and until the Board
delegates administration to a Committee, as provided in subsection 3(c). Whether
or not the Board has delegated administration, the Board shall have the final
power to determine all questions of policy and expediency that may arise in the
administration of the Plan.

    (b)  The Board (or the Committee) shall have the power, subject to, and
within the limitations of, the express provisions of the Plan:

         (i)   To determine when and how Rights to purchase Shares shall be
granted and the provisions of each Offering of such Rights (which need not be
identical).

         (ii)  To designate from time to time which Affiliates of the Company
shall be eligible to participate in the Plan.

         (iii) To construe and interpret the Plan and Rights granted under it,
and to establish, amend and revoke rules and regulations for its administration.
The Board, in the exercise of this power, may correct any defect, omission or
inconsistency in the Plan, in a manner and to the extent it shall deem necessary
or expedient to make the Plan fully effective.

         (iv)  To amend the Plan as provided in Section 14.

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         (v)   Generally, to exercise such powers and to perform such acts as it
deems necessary or expedient to promote the best interests of the Company and
its Affiliates and to carry out the intent that the Plan be treated as an
Employee Stock Purchase Plan.

     (c) The Board may delegate administration of the Plan to a Committee of the
Board composed of two (2) or more members, all of the members of which Committee
may be, in the discretion of the Board, Non-Employee Directors and/or Outside
Directors. If administration is delegated to a Committee, the Committee shall
have, in connection with the administration of the Plan, the powers theretofore
possessed by the Board, including the power to delegate to a subcommittee of two
(2) or more Outside Directors any of the administrative powers the Committee is
authorized to exercise (and references in this Plan to the Board shall
thereafter be to the Committee or such a subcommittee), subject, however, to
such resolutions, not inconsistent with the provisions of the Plan, as may be
adopted from time to time by the Board. The Board may abolish the Committee at
any time and revest in the Board the administration of the Plan.

4.  SHARES SUBJECT TO THE PLAN.

    (a)  Subject to the provisions of subsection 4(b) relating to automatic
increases to the share reserve and the provisions of Section 13 relating to
adjustments upon changes in securities, the Shares that may be sold pursuant to
Rights granted under the Plan shall not exceed in the aggregate three hundred
thousand (300,000) Shares. If any Right granted under the Plan shall for any
reason terminate without having been exercised, the Shares not purchased under
such Right shall again become available for the Plan.

    (b)  For a period of ten (10) years, the share reserve specified in
subsection 4(a) automatically shall be increased on the Calculation Date by the
greater of that number of shares of Common Stock equal to 0.75% of the Diluted
Shares Outstanding or that number of shares of Common Stock that have been
issued under the Plan during the prior 12-month period; provided, however, that
the Board may provide for a lesser number at any time prior to the Calculation
Date, and provided further that such automatic share reserve increases in the
aggregate shall not exceed one million five hundred thousand (1,500,000) Shares.

    (c)  The Shares subject to the Plan may be unissued Shares or Shares that
have been bought on the open market at prevailing market prices or otherwise.

5.  GRANT OF RIGHTS; OFFERING.

    (a)  The Board may from time to time grant or provide for the grant of
Rights to purchase Shares of the Company under the Plan to Eligible Employees in
an Offering on an Offering Date or Dates selected by the Board. Each Offering
shall be in such form and shall contain such terms and conditions as the Board
shall deem appropriate, which shall comply with the requirements of Section
423(b)(5) of the Code that all Employees granted Rights to purchase Shares under
the Plan shall have the same rights and privileges. The terms and conditions of
an Offering shall be incorporated by reference into the Plan and treated as part
of the Plan. The provisions of separate Offerings need not be identical, but
each Offering shall include (through

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incorporation of the provisions of this Plan by reference in the document
comprising the Offering or otherwise) the period during which the Offering shall
be effective, which period shall not exceed twenty-seven (27) months beginning
with the Offering Date, and the substance of the provisions contained in
Sections 6 through 9, inclusive.

    (b)  If a Participant has more than one Right outstanding under the Plan,
unless he or she otherwise indicates in agreements or notices delivered
hereunder: (i) each agreement or notice delivered by that Participant will be
deemed to apply to all of his or her Rights under the Plan, and (ii) an earlier-
granted Right (or a Right with a lower exercise price, if two Rights have
identical grant dates) will be exercised to the fullest possible extent before a
later-granted Right (or a Right with a higher exercise price if two Rights have
identical grant dates) will be exercised.

6.  ELIGIBILITY.

    (a)  Rights may be granted only to Employees of the Company or, as the Board
may designated as provided in subsection 3(b), to Employees of an Affiliate.

         (i)   Except as provided in subsection 6(b), an Employee shall not be
eligible to be granted Rights under the Plan unless, on the Offering Date, such
Employee has been in the employ of the Company or the Affiliate, as the case may
be, for such continuous period preceding such grant as the Board may require in
the Offering, but in no event shall the required period of continuous employment
be equal to or greater than two (2) years.

         (ii)  The Board may provide in an Offering that Employees whose
customary employment is twenty (20) hours or less per week shall not be eligible
to participate.

         (iii) The Board may provide in an Offering that Employees whose
customary employment is for not more than five (5) months in any calendar year
shall not be eligible to participate.

         (iv)  The Board may provide in an Offering that Employees who are
highly compensated Employees within the meaning of Section 423(b)(4)(D) of the
Code shall not be eligible to participate.

    (b)  The Board may provide that each person who, during the course of an
Offering, first becomes an Eligible Employee will, on a date or dates specified
in the Offering which coincides with the day on which such person becomes an
Eligible Employee or which occurs thereafter, receive a Right under that
Offering, which Right shall thereafter be deemed to be a part of that Offering.
Such Right shall have the same characteristics as any Rights originally granted
under that Offering, as described herein, except that:

         (i)   the date on which such Right is granted shall be the "Offering
Date" of such Right for all purposes, including determination of the exercise
price of such Right;

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         (ii)  the period of the Offering with respect to such Right shall begin
on its Offering Date and end coincident with the end of such Offering; and

         (iii) the Board may provide that if such person first becomes an
Eligible Employee within a specified period of time before the end of the
Offering, he or she will not receive any Right under that Offering.

    (c)  No Employee shall be eligible for the grant of any Rights under the
Plan if, immediately after any such Rights are granted, such Employee owns stock
possessing five percent (5%) or more of the total combined voting power or value
of all classes of stock of the Company or of any Affiliate. For purposes of this
subsection 6(c), the rules of Section 424(d) of the Code shall apply in
determining the stock ownership of any Employee, and stock which such Employee
may purchase under all outstanding rights and options shall be treated as stock
owned by such Employee.

    (d)  An Eligible Employee may be granted Rights under the Plan only if such
Rights, together with any other Rights granted under all Employee Stock Purchase
Plans of the Company and any Affiliates, as specified by Section 423(b)(8) of
the Code, do not permit such Eligible Employee's rights to purchase Shares of
the Company or any Affiliate to accrue at a rate which exceeds twenty five
thousand dollars ($25,000) of the fair market value of such Shares (determined
at the time such Rights are granted) for each calendar year in which such Rights
are outstanding at any time.

7.  RIGHTS; PURCHASE PRICE.

    (a)  On each Offering Date, each Eligible Employee, pursuant to an Offering
made under the Plan, shall be granted the Right to purchase up to the number of
Shares purchasable either:

         (i)  with a percentage designated by the Board not exceeding fifteen
percent (15%) of such Employee's Earnings (as defined by the Board in each
Offering) during the period which begins on the Offering Date (or such later
date as the Board determines for a particular Offering) and ends on the date
stated in the Offering, which date shall be no later than the end of the
Offering; or

         (ii) with a maximum dollar amount designated by the Board that, as the
Board determines for a particular Offering, (1) shall be withheld, in whole or
in part, from such Employee's Earnings (as defined by the Board in each
Offering) during the period which begins on the Offering Date (or such later
date as the Board determines for a particular Offering) and ends on the date
stated in the Offering, which date shall be no later than the end of the
Offering and/or (2) shall be contributed, in whole or in part, by such Employee
during such period.

    (b)  The Board shall establish one or more Purchase Dates during an Offering
on which Rights granted under the Plan shall be exercised and purchases of
Shares carried out in accordance with such Offering.

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    (c)  In connection with each Offering made under the Plan, the Board may
specify a maximum amount of Shares that may be purchased by any Participant as
well as a maximum aggregate amount of Shares that may be purchased by all
Participants pursuant to such Offering. In addition, in connection with each
Offering that contains more than one Purchase Date, the Board may specify a
maximum aggregate amount of Shares which may be purchased by all Participants on
any given Purchase Date under the Offering. If the aggregate purchase of Shares
upon exercise of Rights granted under the Offering would exceed any such maximum
aggregate amount, the Board shall make a pro rata allocation of the Shares
available in as nearly a uniform manner as shall be practicable and as it shall
deem to be equitable.

    (d)  The purchase price of Shares acquired pursuant to Rights granted under
the Plan shall be not less than the lesser of:

         (i)  an amount equal to eighty-five percent (85%) of the fair market
value of the Shares on the Offering Date; or

         (ii) an amount equal to eighty-five percent (85%) of the fair market
value of the Shares on the Purchase Date.

8.  PARTICIPATION; WITHDRAWAL; TERMINATION.

    (a)  An Eligible Employee may become a Participant in the Plan pursuant to
an Offering by delivering a participation agreement to the Company within the
time specified in the Offering, in such form as the Company provides. Each such
agreement shall authorize payroll deductions of up to the maximum percentage
specified by the Board of such Employee's Earnings during the Offering (as
defined in each Offering). The payroll deductions made for each Participant
shall be credited to a bookkeeping account for such Participant under the Plan
and either may be deposited with the general funds of the Company or may be
deposited in a separate account in the name of, and for the benefit of, such
Participant with a financial institution designated by the Company. To the
extent provided in the Offering, a Participant may reduce (including to zero) or
increase such payroll deductions. To the extent provided in the Offering, a
Participant may begin such payroll deductions after the beginning of the
Offering. A Participant may make additional payments into his or her account
only if specifically provided for in the Offering and only if the Participant
has not already had the maximum permitted amount withheld during the Offering.

    (b)  At any time during an Offering, a Participant may terminate his or her
payroll deductions under the Plan and withdraw from the Offering by delivering
to the Company a notice of withdrawal in such form as the Company provides. Such
withdrawal may be elected at any time prior to the end of the Offering except as
provided by the Board in the Offering. Upon such withdrawal from the Offering by
a Participant, the Company shall distribute to such Participant all of his or
her accumulated payroll deductions (reduced to the extent, if any, such
deductions have been used to acquire Shares for the Participant) under the
Offering, without interest unless otherwise specified in the Offering, and such
Participant's interest in that Offering shall be automatically terminated. A
Participant's withdrawal from an Offering will have no effect upon such
Participant's eligibility to participate in any other Offerings under the Plan
but

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such Participant will be required to deliver a new participation agreement in
order to participate in subsequent Offerings under the Plan.

    (c)  Rights granted pursuant to any Offering under the Plan shall terminate
immediately upon cessation of any participating Employee's employment with the
Company or a designated Affiliate for any reason (subject to any post-employment
participation period required by law) or other lack of eligibility. The Company
shall distribute to such terminated Employee all of his or her accumulated
payroll deductions (reduced to the extent, if any, such deductions have been
used to acquire Shares for the terminated Employee) under the Offering, without
interest unless otherwise specified in the Offering. If the accumulated payroll
deductions have been deposited with the Company's general funds, then the
distribution shall be made from the general funds of the Company, without
interest. If the accumulated payroll deductions have been deposited in a
separate account with a financial institution as provided in subsection 8(a),
then the distribution shall be made from the separate account, without interest
unless otherwise specified in the Offering.

    (d)  Rights granted under the Plan shall not be transferable by a
Participant otherwise than by will or the laws of descent and distribution, or
by a beneficiary designation as provided in Section 15 and, otherwise during his
or her lifetime, shall be exercisable only by the person to whom such Rights are
granted.

9.  EXERCISE.

    (a)  On each Purchase Date specified therefor in the relevant Offering, each
Participant's accumulated payroll deductions and other additional payments
specifically provided for in the Offering (without any increase for interest)
will be applied to the purchase of Shares up to the maximum amount of Shares
permitted pursuant to the terms of the Plan and the applicable Offering, at the
purchase price specified in the Offering. No fractional Shares shall be issued
upon the exercise of Rights granted under the Plan unless specifically provided
for in the Offering.

    (b)  Unless otherwise specifically provided in the Offering, the amount, if
any, of accumulated payroll deductions remaining in any Participant's account
after the purchase of Shares that is equal to the amount required to purchase
one or more whole Shares on the final Purchase Date of the Offering shall be
distributed in full to the Participant at the end of the Offering, without
interest. If the accumulated payroll deductions have been deposited with the
Company's general funds, then the distribution shall be made from the general
funds of the Company, without interest. If the accumulated payroll deductions
have been deposited in a separate account with a financial institution as
provided in subsection 8(a), then the distribution shall be made from the
separate account, without interest unless otherwise specified in the Offering.

    (c)  No Rights granted under the Plan may be exercised to any extent unless
the Shares to be issued upon such exercise under the Plan (including Rights
granted thereunder) are covered by an effective registration statement pursuant
to the Securities Act and the Plan is in material compliance with all applicable
state, foreign and other securities and other laws

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applicable to the Plan. If on a Purchase Date in any Offering hereunder the Plan
is not so registered or in such compliance, no Rights granted under the Plan or
any Offering shall be exercised on such Purchase Date, and the Purchase Date
shall be delayed until the Plan is subject to such an effective registration
statement and such compliance, except that the Purchase Date shall not be
delayed more than twelve (12) months and the Purchase Date shall in no event be
more than twenty-seven (27) months from the Offering Date. If, on the Purchase
Date of any Offering hereunder, as delayed to the maximum extent permissible,
the Plan is not registered and in such compliance, no Rights granted under the
Plan or any Offering shall be exercised and all payroll deductions accumulated
during the Offering (reduced to the extent, if any, such deductions have been
used to acquire Shares) shall be distributed to the Participants, without
interest unless otherwise specified in the Offering. If the accumulated payroll
deductions have been deposited with the Company's general funds, then the
distribution shall be made from the general funds of the Company, without
interest. If the accumulated payroll deductions have been deposited in a
separate account with a financial institution as provided in subsection 8(a),
then the distribution shall be made from the separate account, without interest
unless otherwise specified in the Offering.

10.  COVENANTS OF THE COMPANY.

     (a)  During the terms of the Rights granted under the Plan, the Company
shall ensure that the amount of Shares required to satisfy such Rights are
available.

     (b)  The Company shall seek to obtain from each federal, state, foreign or
other regulatory commission or agency having jurisdiction over the Plan such
authority as may be required to issue and sell Shares upon exercise of the
Rights granted under the Plan. If, after reasonable efforts, the Company is
unable to obtain from any such regulatory commission or agency the authority
which counsel for the Company deems necessary for the lawful issuance and sale
of Shares under the Plan, the Company shall be relieved from any liability for
failure to issue and sell Shares upon exercise of such Rights unless and until
such authority is obtained.

11.  USE OF PROCEEDS FROM SHARES.

     Proceeds from the sale of Shares pursuant to Rights granted under the Plan
shall constitute general funds of the Company.

12.  RIGHTS AS A STOCKHOLDER.

     A Participant shall not be deemed to be the holder of, or to have any of
the rights of a holder with respect to, Shares subject to Rights granted under
the Plan unless and until the Participant's Shares acquired upon exercise of
Rights under the Plan are recorded in the books of the Company.

13.  ADJUSTMENTS UPON CHANGES IN SECURITIES.

     (a)  If any change is made in the Shares subject to the Plan, or subject to
any Right, without the receipt of consideration by the Company (through merger,
consolidation,

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reorganization, recapitalization, reincorporation, stock dividend, dividend in
property other than cash, stock split, liquidating dividend, combination of
shares, exchange of shares, change in corporate structure or other transaction
not involving the receipt of consideration by the Company), the Plan will be
appropriately adjusted in the class(es) and maximum number of Shares subject to
the Plan pursuant to subsection 4(a), and the outstanding Rights will be
appropriately adjusted in the class(es), number of Shares and purchase limits of
such outstanding Rights. The Board shall make such adjustments, and its
determination shall be final, binding and conclusive. (The conversion of any
convertible securities of the Company shall not be treated as a transaction that
does not involve the receipt of consideration by the Company.)

    (b)  In the event of: (i) a dissolution, liquidation, or sale of all or
substantially all of the assets of the Company; (ii) a merger or consolidation
in which the Company is not the surviving corporation; or (iii) a reverse merger
in which the Company is the surviving corporation but the Shares outstanding
immediately preceding the merger are converted by virtue of the merger into
other property, whether in the form of securities, cash or otherwise, then: (1)
any surviving or acquiring corporation shall assume Rights outstanding under the
Plan or shall substitute similar rights (including a right to acquire the same
consideration paid to Stockholders in the transaction described in this
subsection 13(b)) for those outstanding under the Plan, or (2) in the event any
surviving or acquiring corporation refuses to assume such Rights or to
substitute similar rights for those outstanding under the Plan, then, as
determined by the Board in its sole discretion such Rights may continue in full
force and effect or the Participants' accumulated payroll deductions (exclusive
of any accumulated interest which cannot be applied toward the purchase of
Shares under the terms of the Offering) may be used to purchase Shares
immediately prior to the transaction described above under the ongoing Offering
and the Participants' Rights under the ongoing Offering thereafter terminated.

14.  AMENDMENT OF THE PLAN.

     (a)  The Board at any time, and from time to time, may amend the Plan.
However, except as provided in Section 13 relating to adjustments upon changes
in securities and except as to minor amendments to benefit the administration of
the Plan, to take account of a change in legislation or to obtain or maintain
favorable tax, exchange control or regulatory treatment for Participants or the
Company or any Affiliate, no amendment shall be effective unless approved by the
stockholders of the Company to the extent stockholder approval is necessary for
the Plan to satisfy the requirements of Section 423 of the Code, Rule 16b-3
under the Exchange Act and any Nasdaq or other securities exchange listing
requirements. Currently under the Code, stockholder approval within twelve (12)
months before or after the adoption of the amendment is required where the
amendment will:

          (i)  Increase the amount of Shares reserved for Rights under the Plan;

          (ii) Modify the provisions as to eligibility for participation in the
Plan to the extent such modification requires stockholder approval in order for
the Plan to obtain employee stock purchase plan treatment under Section 423 of
the Code or to comply with the requirements of Rule 16b-3; or

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          (iii)  Modify the Plan in any other way if such modification requires
stockholder approval in order for the Plan to obtain employee stock purchase
plan treatment under Section 423 of the Code or to comply with the requirements
of Rule 16b-3.

     (b)  It is expressly contemplated that the Board may amend the Plan in any
respect the Board deems necessary or advisable to provide Employees with the
maximum benefits provided or to be provided under the provisions of the Code and
the regulations promulgated thereunder relating to Employee Stock Purchase Plans
and/or to bring the Plan and/or Rights granted under it into compliance
therewith.

     (c)  Rights and obligations under any Rights granted before amendment of
the Plan shall not be impaired by any amendment of the Plan, except with the
consent of the person to whom such Rights were granted, or except as necessary
to comply with any laws or governmental regulations, or except as necessary to
ensure that the Plan and/or Rights granted under the Plan comply with the
requirements of Section 423 of the Code.

15.  DESIGNATION OF BENEFICIARY.

     (a)  A Participant may file a written designation of a beneficiary who is
to receive any Shares and/or cash, if any, from the Participant's account under
the Plan in the event of such Participant's death subsequent to the end of an
Offering but prior to delivery to the Participant of such Shares and cash. In
addition, a Participant may file a written designation of a beneficiary who is
to receive any cash from the Participant's account under the Plan in the event
of such Participant's death during an Offering.

     (b)  The Participant may change such designation of beneficiary at any time
by written notice. In the event of the death of a Participant and in the absence
of a beneficiary validly designated under the Plan who is living at the time of
such Participant's death, the Company shall deliver such Shares and/or cash to
the executor or administrator of the estate of the Participant, or if no such
executor or administrator has been appointed (to the knowledge of the Company),
the Company, in its sole discretion, may deliver such Shares and/or cash to the
spouse or to any one or more dependents or relatives of the Participant, or if
no spouse, dependent or relative is known to the Company, then to such other
person as the Company may designate.

16.  TERMINATION OR SUSPENSION OF THE PLAN.

     (a)  The Board in its discretion may suspend or terminate the Plan at any
time. Unless sooner terminated, the Plan shall terminate at the time that all of
the Shares subject to the Plan's reserve, as increased and/or adjusted from time
to time, have been issued under the terms of the Plan. No Rights may be granted
under the Plan while the Plan is suspended or after it is terminated.

     (b)  Rights and obligations under any Rights granted while the Plan is in
effect shall not be impaired by suspension or termination of the Plan, except as
expressly provided in the Plan or with the consent of the person to whom such
Rights were granted, or except as necessary

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to comply with any laws or governmental regulation, or except as necessary to
ensure that the Plan and/or Rights granted under the Plan comply with the
requirements of Section 423 of the Code.

17.  EFFECTIVE DATE OF PLAN.

     The Plan shall become effective as determined by the Board, but no Rights
granted under the Plan shall be exercised unless and until the Plan has been
approved by the stockholders of the Company within twelve (12) months before or
after the date the Plan is adopted by the Board, which date may be prior to the
effective date set by the Board.

                                      -12-