Document:

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                                                                   Exhibit 10.29

                                 PROMISSORY NOTE

U.S. $500,000.00                                               December 22, 1999

                  FOR VALUE RECEIVED, BIONUTRICS, INC., a Nevada corporation
("Borrower"), hereby promises to pay to the order of MILTON OKIN ("Lender"), at
the office of Lender located at _______________________________________________,
the principal amount of $500,000.00, together with interest on the principal
balance outstanding hereunder, from (and including) the date of disbursement
until (but not including) the date of payment, at a per annum rate equal to the
Stated Interest Rate specified below or, to the extent applicable, the Default
Interest Rate specified below, in accordance with the following terms and
conditions:

         1. CONTRACTED FOR RATE OF INTEREST. The contracted for rate of interest
of the indebtedness evidenced hereby, without limitation, shall consist of the
following:

                  (a) The Stated Interest Rate (as hereinafter defined), as from
time to time in effect, calculated daily on the basis of actual days elapsed
over a 365-day year, applied to the principal balance from time to time
outstanding hereunder; and

                  (b) The Default Interest Rate (as hereinafter defined), as
from time to time in effect, calculated daily on the basis of actual days
elapsed over a 365-day year, applied to the principal balance from time to time
outstanding hereunder.

Borrower agrees to pay an effective contracted for rate of interest which is the
sum of the Stated Interest Rate referred to in Subsection 1(a) above, plus any
additional rate of interest resulting from the application of the Default
Interest Rate referred to in Subsection 1(b) above.

         2. STATED INTEREST RATE. Except as provided in Section 3 below, the
principal balance outstanding hereunder from time to time shall bear interest at
the Stated Interest Rate. The Stated Interest Rate shall be equal to 9.5% per
annum.

         3. DEFAULT INTEREST RATE. The Default Interest Rate shall be a per
annum rate equal to 15%. The principal balance outstanding hereunder from time
to time shall bear interest at the Default Interest Rate from the date of the
occurrence of an Event of Default (as hereinafter defined) hereunder until the
earlier of: (a) the date on which the principal balance outstanding hereunder,
together with all accrued interest and other amounts payable hereunder, are paid
in full; or (b) the date on which such Event of Default is timely cured in a
manner satisfactory to Lender.

         4. PAYMENTS. The principal balance outstanding hereunder, together with
all accrued and unpaid interest and other amounts payable hereunder, if not
sooner paid as provided herein, shall be due and payable one hundred twenty
(120) days from the date hereof.
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         5. PREPAYMENTS. Payments of principal hereof may be made at any time,
or from time to time, in whole or in part, without penalty. Borrower shall
provide Lender with written notice five (5) days prior to any such prepayment.
Within such five (5) day period, Lender shall have the right to exercise its
Conversion Rights (defined below) with respect to such prepayment amount or the
entire outstanding amounts due herein in accordance with Section 6 below.

         6. CONVERSION RIGHTS. Subject to Section 5 above, Lender shall have the
right at any time to convert (the "Conversion Rights") any and all outstanding
amounts hereunder into common stock of Borrower at the conversion rate of $2.00
per share. Lender shall exercise its Conversion Rights by delivering to Borrower
written notice (the "Conversion Notice") of its intention to exercise such
rights. Such conversion shall be effective five (5) days after receipt of the
Conversion Notice by Borrower. Any amounts due under this Note converted to
common stock of Borrower pursuant to the Conversion Rights shall be deemed paid
and satisfied.

         7. EVENTS OF DEFAULT; ACCELERATION. The occurrence of any one or more
of the following events shall constitute an "Event of Default" hereunder, and
upon such Event of Default, the entire principal balance outstanding hereunder,
together with all accrued interest and other amounts payable hereunder, at the
election of Lender, shall become immediately due and payable: (a) nonpayment of
principal, interest or other amounts when the same shall become due and payable
hereunder, and (b) the failure of Borrower to comply with any provision of this
Note.

         8. WAIVERS. Except as set forth in this Note, to the extent permitted
by applicable law, Borrower, and each person who is or may become liable
hereunder, severally waive and agree not to assert: (a) any exemption rights;
(b) demand, diligence, grace, presentment for payment, protest, notice of
nonpayment, nonperformance, extension, dishonor, maturity, protest and default;
and (c) recourse to guaranty or suretyship defenses (including, without
limitation, the right to require the Lender to bring an action on this Note).

         9. COSTS OF COLLECTION. If this Note shall be placed in the hands of an
attorney for collection, by suit or otherwise, then Borrower's obligations
hereunder shall include the payment of all collection costs and expenses
incurred by Lender in connection therewith, including, without limitation,
reasonable attorneys' fees and costs.

         10. GOVERNING LAW. This Note shall be construed in accordance with and
governed by the laws of the State of Arizona, without regard to the choice of
law rules of the State of Arizona.

         11. BINDING NATURE. The provisions of this Note shall be binding upon
Borrower and its successors and assigns, and shall inure to the benefit of
Lender and its successors and assigns.

         12. NOTICE. Any notice or other communication with respect to this Note
shall: (a) be in writing; (b) be effective on the day of hand-delivery thereof
to the party to whom directed, one day following the day of deposit thereof with
delivery charges prepaid, with a national overnight delivery service, or two
days following the day of deposit thereof with postage prepaid, with the United
States Postal Service, by regular first class, certified or registered mail; (c)
if directed to Lender, be addressed to Lender at the office of Lender set forth
above, or to such other address

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as Lender shall have specified to Borrower by like notice; and (d) if directed
to Borrower, be addressed to Borrower at the address for Borrower set forth
below Borrower's name, or to such other address as Borrower shall have specified
by like notice.

         13. SECTION HEADINGS. The section headings set forth in this Note are
for convenience only and shall not have substantive meaning hereunder or be
deemed part of this Note.

         14. CONSTRUCTION. This Note shall be construed as a whole, in
accordance with its fair meaning, and without regard to or taking into account
any presumption or other rule of law requiring construction against the party
preparing this Note.

         IN WITNESS WHEREOF, Borrower has executed this Note as of the date
first set forth above.

                                       "BORROWER"

                                       BIONUTRICS, INC., a Nevada corporation

                                       By:  /s/ Ronald H. Lane
                                          -------------------------------------
                                       Name:  Ronald H. Lane
                                            -----------------------------------
                                       Title:  President
                                             ----------------------------------

                                       ADDRESS OF BORROWER:

                                       2425 E. Camelback Road
                                       Suite #650
                                       Phoenix, Arizona 85016

                                       3<PAGE>   1
                                                                   Exhibit 10.20

                                   EXHIBIT A

                            JDA SOFTWARE GROUP, INC.

                        INCENTIVE STOCK OPTION AGREEMENT

         The Company has granted to ___________________ (the "OPTIONEE") an
option to purchase certain shares of Stock, upon the terms and conditions set
forth in this Option Agreement and the Notice of Stock Option Grant to which
this Option Agreement is attached as Exhibit A (the "NOTICE").

         1. DEFINITIONS AND CONSTRUCTION.

         1.1 DEFINITIONS. Unless otherwise defined herein, capitalized terms
shall have the meanings assigned to such terms in the Notice. Whenever used
herein, the following terms shall have their respective meanings set forth
below:

                  (a) "BOARD" means the Board of Directors of the Company. If
one or more Committees have been appointed by the Board to administer the Plan,
"Board" shall also mean such Committee(s).

                  (b) "CODE" means the Internal Revenue Code of 1986, as
amended, and any applicable regulations promulgated thereunder.

                  (c) "COMMITTEE" means the Compensation Committee or other
committee of the Board duly appointed to administer the Plan and having such
powers as shall be specified by the Board. Unless the powers of the Committee
have been specifically limited, the Committee shall have all of the powers of
the Board granted in the Plan, including, without limitation, the power to amend
or terminate the Plan at any time, subject to the terms of the Plan and any
applicable limitations imposed by law.

                  (d) "COMPANY" means JDA Software Group, Inc., a Delaware
corporation, or any successor corporation thereto.

                  (e) "CONSULTANT" means any person, including an advisor,
engaged by a Participating Company to render services other than as an Employee
or a Director.

                  (f) "DIRECTOR" means a member of the Board or of the board of
directors of any other Participating Company.

                  (g) "DISABILITY" means the permanent and total disability of
the Optionee within the meaning of Section 22(e)(3) of the Code.

                  (h) "EMPLOYEE" means any person treated as an employee
(including an officer or a Director who is also treated as an employee) in the
records of a Participating

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Company; provided, however, that neither service as a Director nor payment of a
director's fee shall be sufficient to constitute employment for this purpose.

                  (i) "EXCHANGE ACT" means the Securities Exchange Act of 1934,
as amended.

                  (j) "FAIR MARKET VALUE" means, as of any date, the value of a
share of stock or other property, as determined by the Board, in its sole
discretion, or by the Company, in its sole discretion, if such determination is
expressly allocated to the Company herein.

                  (k) "OPTION EXPIRATION DATE" means the date ten (10) years
after the Date of Option Grant.

                  (l) "PARENT CORPORATION" means any present or future "parent
corporation" of the Company, as defined in Section 424(e) of the Code.

                  (m) "PARTICIPATING COMPANY" means the Company or any Parent
Corporation or Subsidiary Corporation.

                  (n) "PARTICIPATING COMPANY GROUP" means, at any point in time,
all corporations collectively which are then Participating Companies.

                  (o) "PLAN" means the JDA Software Group, Inc. 1996 Stock
Option Plan.

                  (p) "SECURITIES ACT" means the Securities Act of 1933, as
amended.

                  (q) "SERVICE" means the Optionee's employment or service with
the Participating Company Group, whether in the capacity of an Employee, a
Director or a Consultant. The Optionee's Service shall not be deemed to have
terminated merely because of a change in the capacity in which the Optionee
renders Service to the Participating Company Group or a change in the
Participating Company for which the Optionee renders such Service, provided that
there is no interruption or termination of the Optionee's Service. The
Optionee's Service shall be deemed to have terminated either upon an actual
termination of Service or upon the corporation for which the Optionee performs
Service ceasing to be a Participating Company. Subject to the foregoing, the
Company, in its sole discretion, shall determine whether the Optionee's Service
has terminated and the effective date of such termination. (NOTE: If the Option
is exercised more than three (3) months after the date on which the Optionee
ceased to be an Employee (other than by reason of death or Disability), the
Option will be treated as a nonstatutory stock option and not as an incentive
stock option to the extent required by Section 422 of the Code.)

                  (r) "SUBSIDIARY CORPORATION" means any present or future
"subsidiary corporation" of the Company, as defined in Section 424(f) of the
Code.

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            1.2 CONSTRUCTION. Captions and titles contained herein are for
convenience only and shall not affect the meaning or interpretation of any
provision of this Option Agreement. Except when otherwise indicated by the
context, the singular shall include the plural, the plural shall include the
singular, and the term "or" shall include the conjunctive as well as the
disjunctive.

                2. TAX STATUS OF OPTION. This Option is intended to be an
incentive stock option within the meaning of Section 422(b) of the Code (an
"INCENTIVE STOCK OPTION"), but the Company does not represent or warrant that
this Option qualifies as such. The Optionee should consult with the Optionee's
own tax advisor regarding the tax effects of this Option and the requirements
necessary to obtain favorable income tax treatment under Section 422 of the
Code, including, but not limited to, holding period requirements. (NOTE: If the
aggregate Exercise Price of the Option (that is, the Exercise Price multiplied
by the Number of Option Shares) plus the aggregate exercise price of any other
Incentive Stock Options held by the Optionee (whether granted pursuant to the
Plan or any other stock option plan of the Participating Company Group) is
greater than One Hundred Thousand Dollars ($100,000), the Optionee should
contact the Chief Financial Officer of the Company to ascertain whether the
entire Option qualifies as an Incentive Stock Option.)

                3. ADMINISTRATION. All questions of interpretation concerning
this Option Agreement shall be determined by the Board, including any duly
appointed Committee of the Board. All determinations by the Board shall be final
and binding upon all persons having an interest in the Option. Any officer of a
Participating Company shall have the authority to act on behalf of the Company
with respect to any matter, right, obligation, or election which is the
responsibility of or which is allocated to the Company herein, provided the
officer has apparent authority with respect to such matter, right, obligation,
or election.

                4. EXERCISE OF THE OPTION.

                   4.1 RIGHT TO EXERCISE. Except as otherwise provided herein,
the Option shall be exercisable on and after the Date of Option Grant and prior
to the termination of the Option (as provided in Section 6) in an amount not to
exceed the Number of Option Shares multiplied by the Vested Ratio less the
number of shares previously acquired upon exercise of the Option. In no event
shall the Option be exercisable for more shares than the Number of Option
Shares.

                   4.2 METHOD OF EXERCISE. Exercise of the Option shall be by
written notice to the Company which must state the election to exercise the
Option, the number of whole shares of Stock for which the Option is being
exercised and such other representations and agreements as to the Optionee's
investment intent with respect to such shares as may be required pursuant to the
provisions of this Option Agreement. The written notice must be signed by the
Optionee and must be delivered in person, by certified or registered mail,
return receipt requested, by confirmed facsimile transmission, or by such other
means as the Company may permit, to the Chief Financial Officer of the Company,
or other authorized representative of the Participating Company Group, prior to
the termination of the Option as set forth in Section 6, accompanied by (i) full
payment of the aggregate Exercise Price for the number of shares of Stock being

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purchased and (ii) an executed copy, if required herein, of the then current
forms of escrow and security agreement referenced below. The Option shall be
deemed to be exercised upon receipt by the Company of such written notice, the
aggregate Exercise Price, and, if required by the Company, such executed
agreements.

                   4.3 PAYMENT OF EXERCISE PRICE.

                   (a) FORMS OF CONSIDERATION AUTHORIZED. Except as otherwise
provided below, payment of the aggregate Exercise Price for the number of shares
of Stock for which the Option is being exercised shall be made (i) in cash, by
check, or cash equivalent, (ii) by tender to the Company of whole shares of
Stock owned by the Optionee having a Fair Market Value (as determined by the
Company without regard to any restrictions on transferability applicable to such
stock by reason of federal or state securities laws or agreements with an
underwriter for the Company) not less than the aggregate Exercise Price, (iii)
by means of a Cashless Exercise, as defined in Section 4.3(c), (iv) in the
Company's sole discretion at the time the Option is exercised, by cash for a
portion of the aggregate Exercise Price not less than the par value of the
shares being acquired and the Optionee's promissory note for the balance of the
aggregate Exercise Price, or (v) by any combination of the foregoing.

                   (b) TENDER OF STOCK. Notwithstanding the foregoing, the
Option may not be exercised by tender to the Company of shares of Stock to the
extent such tender of Stock would constitute a violation of the provisions of
any law, regulation or agreement restricting the redemption of the Company's
stock. The Option may not be exercised by tender to the Company of shares of
Stock unless such shares either have been owned by the Optionee for more than
six (6) months or were not acquired, directly or indirectly, from the Company.

                   (c) CASHLESS EXERCISE. A "CASHLESS EXERCISE" means the
assignment in a form acceptable to the Company of the proceeds of a sale or loan
with respect to some or all of the shares of Stock acquired upon the exercise of
the Option pursuant to a program or procedure approved by the Company
(including, without limitation, through an exercise complying with the
provisions of Regulation T as promulgated from time to time by the Board of
Governors of the Federal Reserve System). The Company reserves, at any and all
times, the right, in the Company's sole and absolute discretion, to decline to
approve or terminate any such program or procedure.

                   (d) PAYMENT BY PROMISSORY NOTE. No promissory note shall be
permitted if an exercise of the Option using a promissory note would be a
violation of any law. Unless otherwise specified by the Board at the time the
Option is granted, the promissory note permitted in clause (iv) of Section
4.3(a) shall be a full recourse note in a form satisfactory to the Company, with
principal payable four (4) years after the date the Option is exercised.
Interest on the principal balance of the promissory note shall be payable in
annual installments at the minimum interest rate necessary to avoid imputed
interest pursuant to all applicable sections of the Code. Such recourse
promissory note shall be secured by the shares of Stock acquired pursuant to the
then current form of security agreement as approved by the Company. At any time
the Company is subject to the regulations promulgated by the Board of Governors
of the

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Federal Reserve System or any other governmental entity affecting the
extension of credit in connection with the Company's securities, any promissory
note shall comply with such applicable regulations, and the Optionee shall pay
the unpaid principal and accrued interest, if any, to the extent necessary to
comply with such applicable regulations. Except as the Company in its sole
discretion shall determine, the Optionee shall pay the unpaid principal balance
of the promissory note and any accrued interest thereon upon termination of the
Optionee's Service with the Participating Company Group for any reason, with or
without cause.

                   4.4 TAX WITHHOLDING. At the time the Option is exercised, in
whole or in part, or at any time thereafter as requested by the Company, the
Optionee hereby authorizes withholding from payroll and any other amounts
payable to the Optionee, and otherwise agrees to make adequate provision for
(including by means of a Cashless Exercise to the extent permitted by the
Company), any sums required to satisfy the federal, state, local and foreign tax
withholding obligations of the Participating Company Group, if any, which arise
in connection with the Option, including, without limitation, obligations
arising upon (i) the exercise, in whole or in part, of the Option, (ii) the
transfer, in whole or in part, of any shares acquired upon exercise of the
Option, (iii) the operation of any law or regulation providing for the
imputation of interest, or (iv) the lapsing of any restriction with respect to
any shares acquired upon exercise of the Option. The Optionee is cautioned that
the Option is not exercisable unless the tax withholding obligations of the
Participating Company Group are satisfied. Accordingly, the Optionee may not be
able to exercise the Option when desired even though the Option is vested, and
the Company shall have no obligation to issue a certificate for such shares or
release such shares from any escrow provided for herein.

                   4.5 CERTIFICATE REGISTRATION. Except in the event the
Exercise Price is paid by means of a Cashless Exercise, the certificate for the
shares as to which the Option is exercised shall be registered in the name of
the Optionee, or, if applicable, in the names of the heirs of the Optionee.

                   4.6 RESTRICTIONS ON GRANT OF THE OPTION AND ISSUANCE OF
SHARES. The grant of the Option and the issuance of shares of Stock upon
exercise of the Option shall be subject to compliance with all applicable
requirements of federal, state or foreign law with respect to such securities.
The Option may not be exercised if the issuance of shares of Stock upon exercise
would constitute a violation of any applicable federal, state or foreign
securities laws or other law or regulations or the requirements of any stock
exchange or market system upon which the Stock may then be listed. In addition,
the Option may not be exercised unless (i) a registration statement under the
Securities Act shall at the time of exercise of the Option be in effect with
respect to the shares issuable upon exercise of the Option or (ii) in the
opinion of legal counsel to the Company, the shares issuable upon exercise of
the Option may be issued in accordance with the terms of an applicable exemption
from the registration requirements of the Securities Act. THE OPTIONEE IS
CAUTIONED THAT THE OPTION MAY NOT BE EXERCISED UNLESS THE FOREGOING CONDITIONS
ARE SATISFIED. ACCORDINGLY, THE OPTIONEE MAY NOT BE ABLE TO EXERCISE THE OPTION
WHEN DESIRED EVEN THOUGH THE OPTION IS VESTED. Questions concerning this
restriction should be directed to the Chief Financial Officer of the Company.
The inability of the Company to obtain from any

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regulatory body having jurisdiction the authority, if any, deemed by the
Company's legal counsel to be necessary to the lawful issuance and sale of any
shares subject to the Option shall relieve the Company of any liability in
respect of the failure to issue or sell such shares as to which such requisite
authority shall not have been obtained. As a condition to the exercise of the
Option, the Company may require the Optionee to satisfy any qualifications that
may be necessary or appropriate, to evidence compliance with any applicable law
or regulation and to make any representation or warranty with respect thereto as
may be requested by the Company.

                   4.7 FRACTIONAL SHARES. The Company shall not be required to
issue fractional shares upon the exercise of the Option.

                5. NONTRANSFERABILITY OF THE OPTION. The Option may be exercised
during the lifetime of the Optionee only by the Optionee or the Optionee's
guardian or legal representative and may not be assigned or transferred in any
manner except by will or by the laws of descent and distribution. Following the
death of the Optionee, the Option, to the extent provided in Section 7, may be
exercised by the Optionee's legal representative or by any person empowered to
do so under the deceased Optionee's will or under the then applicable laws of
descent and distribution.

                6. TERMINATION OF THE OPTION. The Option shall terminate and may
no longer be exercised on the first to occur of (a) the Option Expiration Date,
(b) the last date for exercising the Option following termination of the
Optionee's Service as described in Section 7, or (c) a Transfer of Control to
the extent provided in Section 8.

                7. EFFECT OF TERMINATION OF SERVICE.

                   7.1 OPTION EXERCISABILITY.

                   (a) DISABILITY. If the Optionee's Service with the
Participating Company Group is terminated because of the Disability of the
Optionee, the Option, to the extent unexercised and exercisable on the date on
which the Optionee's Service terminated, may be exercised by the Optionee (or
the Optionee's guardian or legal representative) at any time prior to the
expiration of twelve (12) months after the date on which the Optionee's Service
terminated, but in any event no later than the Option Expiration Date.

                   (b) DEATH. If the Optionee's Service with the Participating
Company Group is terminated because of the death of the Optionee, the Option, to
the extent unexercised and exercisable on the date on which the Optionee's
Service terminated, may be exercised by the Optionee (or the Optionee's legal
representative or other person who acquired the right to exercise the Option by
reason of the Optionee's death) at any time prior to the expiration of twelve
(12) months after the date on which the Optionee's Service terminated, but in
any event no later than the Option Expiration Date. The Optionee's Service shall
be deemed to have terminated on account of death if the Optionee dies within one
(1) month after the Optionee's termination of Service.

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                   (c) OTHER TERMINATION OF SERVICE. If the Optionee's Service
with the Participating Company Group terminates for any reason, except
Disability or death, the Option, to the extent unexercised and exercisable by
the Optionee on the date on which the Optionee's Service terminated, may be
exercised by the Optionee within one (1) month (or such other longer period of
time as determined by the Board, in its sole discretion) after the date on which
the Optionee's Service terminated, but in any event no later than the Option
Expiration Date.

                7.2 ADDITIONAL LIMITATION ON OPTION EXERCISE. Except as the
Company and the Optionee otherwise agree, exercise of the Option pursuant to
Section 7.1 following termination of the Optionee's Service may not be made by
delivery of a promissory note as provided in Section 4.3(a).

                7.3 EXTENSION IF EXERCISE PREVENTED BY LAW. Notwithstanding the
foregoing, if the exercise of the Option within the applicable time periods set
forth in Section 7.1 is prevented by the provisions of Section 4.6, the Option
shall remain exercisable until three (3) months after the date the Optionee is
notified by the Company that the Option is exercisable, but in any event no
later than the Option Expiration Date. The Company makes no representation as to
the tax consequences of any such delayed exercise. The Optionee should consult
with the Optionee's own tax advisor as to the tax consequences to the Optionee
of any such delayed exercise.

                7.4 EXTENSION IF OPTIONEE SUBJECT TO SECTION 16(B).
Notwithstanding the foregoing, if a sale within the applicable time periods set
forth in Section 7.1 of shares acquired upon the exercise of the Option would
subject the Optionee to suit under Section 16(b) of the Exchange Act, the Option
shall remain exercisable until the earliest to occur of (i) the tenth (10th) day
following the date on which a sale of such shares by the Optionee would no
longer be subject to such suit, (ii) the one hundred and ninetieth (190th) day
after the Optionee's termination of Service, or (iii) the Option Expiration
Date. The Company makes no representation as to the tax consequences of any such
delayed exercise. The Optionee should consult with the Optionee's own tax
advisors as to the tax consequences to the Optionee of any such delayed
exercise.

                7.5 LEAVE OF ABSENCE. For purposes of Section 7.1, the
Optionee's Service with the Participating Company Group shall not be deemed to
terminate if the Optionee takes any military leave, sick leave, or other bona
fide leave of absence approved by the Company of ninety (90) days or less. In
the event of a leave of absence in excess of ninety (90) days, the Optionee's
Service shall be deemed to terminate on the ninety-first (91st) day of such
leave unless the Optionee's right to reemployment with the Participating Company
Group remains guaranteed by statute or contract. Notwithstanding the foregoing,
unless otherwise designated by the Company (or required by law), a leave of
absence shall not be treated as Service for purposes of determining the
Optionee's Vested Ratio.

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                      8. TRANSFER OF CONTROL.

                         8.1 DEFINITIONS.

                             (a) An "OWNERSHIP CHANGE EVENT" shall be deemed to
have occurred if any of the following occurs with respect to the Company:

                             (i) the direct or indirect sale or exchange in a
single or series of related transactions by the stockholders of the Company of
more than fifty percent (50%) of the voting stock of the Company;

                             (ii) a merger or consolidation in which the Company
is a party;

                             (iii) the sale, exchange, or transfer of all or
substantially all of the assets of the Company; or

                             (iv) a liquidation or dissolution of the Company.

                   (b) A "TRANSFER OF CONTROL" shall mean an Ownership Change
Event or a series of related Ownership Change Events (collectively, the
"TRANSACTION") wherein the stockholders of the Company immediately before the
Transaction do not retain immediately after the Transaction, in substantially
the same proportions as their ownership of shares of the Company's voting stock
immediately before the Transaction, direct or indirect beneficial ownership of
more than fifty percent (50%) of the total combined voting power of the
outstanding voting stock of the Company or the corporation or corporations to
which the assets of the Company were transferred (the "TRANSFEREE
CORPORATION(S)"), as the case may be. For purposes of the preceding sentence,
indirect beneficial ownership shall include, without limitation, an interest
resulting from ownership of the voting stock of one or more corporations which,
as a result of the Transaction, own the Company or the Transferee
Corporation(s), as the case may be, either directly or through one or more
subsidiary corporations. The Board shall have the right to determine whether
multiple sales or exchanges of the voting stock of the Company or multiple
Ownership Change Events are related, and its determination shall be final,
binding and conclusive.

               8.2 EFFECT OF TRANSFER OF CONTROL ON OPTION. In the event of a
Transfer of Control, any unexercised portion of the Option shall be immediately
exercisable and vested in full as of the date ten (10) days prior to the date of
the Transfer of Control, subject to Section 10 below. Any exercise of the Option
that was permissible solely by reason of this Section 8.2 shall be conditioned
upon the consummation of the Transfer of Control. In addition, the surviving,
continuing, successor, or purchasing corporation or parent corporation thereof,
as the case may be (the "ACQUIRING CORPORATION"), may either assume the
Company's rights and obligations under the Option or substitute for the Option a
substantially equivalent option for the Acquiring Corporation's stock. The
Option shall terminate and cease to be outstanding effective as of the date of
the Transfer of Control to the extent that the Option is neither assumed or
substituted for by the Acquiring Corporation in connection with the Transfer of
Control nor exercised as of the date of the Transfer of Control. Notwithstanding
the foregoing, shares acquired upon exercise of

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the Option prior to the Transfer of Control and any consideration received
pursuant to the Transfer of Control with respect to such shares shall continue
to be subject to all applicable provisions of this Option Agreement except as
otherwise provided herein. Furthermore, notwithstanding the foregoing, if the
corporation the stock of which is subject to the Option immediately prior to an
Ownership Change Event described in Section 8.1(a)(i) constituting a Transfer of
Control is the surviving or continuing corporation and immediately after such
Ownership Change Event less than fifty percent (50%) of the total combined
voting power of its voting stock is held by another corporation or by other
corporations that are members of an affiliated group within the meaning of
Section 1504(a) of the Code without regard to the provisions of Section 1504(b)
of the Code, the Option shall not terminate unless the Board otherwise provides
in its sole discretion.

               8.3 FAIR MARKET VALUE LIMITATION. Should the exercisability of
this Option be accelerated in connection with a Transfer of Control in
accordance with Section 8.2, then to the extent that the aggregate Fair Market
Value of the shares of Stock with respect to which the Optionee may exercise the
Option for the first time during the calendar year of the Transfer of Control,
when added to the aggregate Fair Market Value of the shares subject to any other
options designated as Incentive Stock Options granted to the Optionee under all
stock option plans of the Participating Company Group prior to the Date of
Option Grant with respect to which such options are exercisable for the first
time during the same calendar year, exceeds One Hundred Thousand Dollars
($100,000) (or such other limit, if any, imposed by Section 422 of the Code),
the portion of the Option which exceeds such amount shall be treated as a
nonstatutory stock option. For purposes of the preceding sentence, options
designated as Incentive Stock Options shall be taken into account in the order
in which they were granted, and the Fair Market Value of shares of stock shall
be determined as of the time the option with respect to such shares is granted.

               9. ADJUSTMENTS FOR CHANGES IN CAPITAL STRUCTURE. In the event of
any stock dividend, stock split, reverse stock split, recapitalization,
combination, reclassification, or similar change in the capital structure of the
Company, appropriate adjustments shall be made in the number, Exercise Price and
class of shares of stock subject to the Option. If a majority of the shares
which are of the same class as the shares that are subject to the Option are
exchanged for, converted into, or otherwise become (whether or not pursuant to
an Ownership Change Event) shares of another corporation (the "NEW SHARES"), the
Board may unilaterally amend the Option to provide that the Option is
exercisable for New Shares. In the event of any such amendment, the Number of
Option Shares and the Exercise Price shall be adjusted in a fair and equitable
manner, as determined by the Board, in its sole discretion. Notwithstanding the
foregoing, any fractional share resulting from an adjustment pursuant to this
Section 9 shall be rounded down to the nearest whole number, and in no event may
the Exercise Price be decreased to an amount less than the par value, if any, of
the stock subject to the Option.

               10. SECTION 4999 LIMITATION. This Section 10 shall apply only if
the Optionee, on an after-tax basis, would receive more value under this Option
after the application of this Section than before the application of this
Section. For this purpose, "after-tax basis" shall mean a calculation taking
into account all federal and state income and excise taxes imposed on the

                                       9
<PAGE>   10
Optionee, including (without limitation) the excise tax described in section
4999 of the Code. If this Section 10 is applicable, it shall supersede any
conflicting provision of this Option Agreement.

         Options shall accelerate pursuant to the provisions of this Option
Agreement, including without limitation those set forth in Section 8 hereof, to
the extent but only to the extent that such acceleration would not subject the
Optionee to the excise tax described in section 4999 of the Code. All
calculations required by this Section 10 shall be made by the independent
auditors retained by the Company most recently prior to the Transfer of Control,
based on information supplied by Company and Optionee, and shall be binding on
the Company and the Optionee. All fees and expenses of such auditors shall be
paid by the Company.

               11. RIGHTS AS A STOCKHOLDER, EMPLOYEE OR CONSULTANT. The Optionee
shall have no rights as a stockholder with respect to any shares covered by the
Option until the date of the issuance of a certificate for the shares for which
the Option has been exercised (as evidenced by the appropriate entry on the
books of the Company or of a duly authorized transfer agent of the Company). No
adjustment shall be made for dividends, distributions or other rights for which
the record date is prior to the date such certificate is issued, except as
provided in Section 9. Nothing in this Option Agreement shall confer upon the
Optionee any right to continue in the Service of a Participating Company or
interfere in any way with any right of the Participating Company Group to
terminate the Optionee's Service as an Employee or Consultant, as the case may
be, at any time.

               12. ESCROW.

                   12.1 ESTABLISHMENT OF ESCROW. To ensure that shares securing
any promissory note will be available for repurchase, the Company may require
the Optionee to deposit the certificate evidencing the shares which the Optionee
purchases upon exercise of the Option with an agent designated by the Company
under the terms and conditions of a security agreement approved by the Company.
If the Company does not require such deposit as a condition of exercise of the
Option, the Company reserves the right at any time to require the Optionee to so
deposit the certificate in escrow. Upon the occurrence of an Ownership Change
Event or a change, as described in Section 9, in the character or amount of any
of the outstanding stock of the corporation the stock of which is subject to the
provisions of this Option Agreement, any and all new, substituted or additional
securities or other property to which the Optionee is entitled by reason of the
Optionee's ownership of shares of Stock acquired upon exercise of the Option
that remain, following such Ownership Change Event or change described in
Section 9, subject to any security interest held by the Company shall be
immediately subject to the escrow to the same extent as such shares of Stock
immediately before such event. The Company shall bear the expenses of the
escrow.

                   12.2 DELIVERY OF SHARES TO OPTIONEE. As soon as practicable
after full repayment of any promissory note secured by the shares or other
property in escrow, the agent shall deliver to the Optionee the shares and any
other property no longer securing any promissory note.

                                       10
<PAGE>   11

                   13. STOCK DISTRIBUTIONS SUBJECT TO OPTION AGREEMENT. If, from
time to time, there is any stock dividend, stock split or other change, as
described in Section 9, in the character or amount of any of the outstanding
stock of the corporation the stock of which is subject to the provisions of this
Option Agreement, then in such event any and all new, substituted or additional
securities to which the Optionee is entitled by reason of the Optionee's
ownership of the shares acquired upon exercise of the Option shall be
immediately subject to any security interest held by the Company with the same
force and effect as the shares subject to such security interest immediately
before such event.

                   14. NOTICE OF SALES UPON DISQUALIFYING DISPOSITION. The
Optionee shall dispose of the shares acquired pursuant to the Option only in
accordance with the provisions of this Option Agreement. In addition, the
Optionee shall promptly notify the Chief Financial Officer of the Company if the
Optionee disposes of any of the shares acquired pursuant to the Option within
one (1) year after the date the Optionee exercises all or part of the Option or
within two (2) years after the Date of Option Grant. Until such time as the
Optionee disposes of such shares in a manner consistent with the provisions of
this Option Agreement, unless otherwise expressly authorized by the Company, the
Optionee shall hold all shares acquired pursuant to the Option in the Optionee's
name (and not in the name of any nominee) for the one-year period immediately
after the exercise of the Option and the two-year period immediately after Date
of Option Grant. At any time during the one-year or two-year periods set forth
above, the Company may place a legend on any certificate representing shares
acquired pursuant to the Option requesting the transfer agent for the Company's
stock to notify the Company of any such transfers. The obligation of the
Optionee to notify the Company of any such transfer shall continue
notwithstanding that a legend has been placed on the certificate pursuant to the
preceding sentence.

                   15. LEGENDS. The Company may at any time place legends
referencing any applicable federal, state or foreign securities law restrictions
on all certificates representing shares of stock subject to the provisions of
this Option Agreement. The Optionee shall, at the request of the Company,
promptly present to the Company any and all certificates representing shares
acquired pursuant to the Option in the possession of the Optionee in order to
carry out the provisions of this Section.

                   16. BINDING EFFECT. Subject to the restrictions on transfer
set forth herein, this Option Agreement shall inure to the benefit of and be
binding upon the parties hereto and their respective heirs, executors,
administrators, successors and assigns. Any successor to the Company (whether
direct or indirect and whether by purchase, lease, merger, consolidation,
liquidation or otherwise) or to all or substantially all of the Company's
business and/or assets shall assume the obligations under this Option Agreement
and agree expressly to perform the obligations under this Option Agreement in
the same manner and to the same extent as the Company would be required to
perform such obligations in the absence of a succession. Failure of the Company
to obtain such agreement shall be a material breach of this Option Agreement.

                   17. TERMINATION OR AMENDMENT. The Board may terminate or
amend the Plan or the Option at any time; provided, however, that except as
provided in Section 8.2 in connection

                                       11
<PAGE>   12
with a Transfer of Control, no such termination or amendment may adversely
affect the Option or any unexercised portion hereof without the consent of the
Optionee unless such termination or amendment is necessary to comply with any
applicable law or government regulation or is required to enable the Option to
qualify as an Incentive Stock Option. No amendment or addition to this Option
Agreement shall be effective unless in writing.

                   18. INTEGRATED AGREEMENT. This Option Agreement constitutes
the entire understanding and agreement of the Optionee and the Participating
Company Group with respect to the subject matter contained herein, and there are
no agreements, understandings, restrictions, representations, or warranties
among the Optionee and the Participating Company Group with respect to such
subject matter other than those as set forth or provided for herein. To the
extent contemplated herein, the provisions of this Option Agreement shall
survive any exercise of the Option and shall remain in full force and effect.

                   19. APPLICABLE LAW. This Option Agreement shall be governed
by the laws of the State of Delaware as such laws are applied to agreements
between Delaware residents entered into and to be performed entirely within the
State of Delaware.

                                       12

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