Document:

STOCK PURCHASE AGREEMENT

This Stock Purchase Agreement (this “Agreement”) is made as of December 13, 2002, by and between Boris Klebansky (“Klebansky”) and Discovery Partners International, Inc. (“DPI”).

WHEREAS, Klebansky desires to sell and DPI desires to purchase 286,000 shares of common stock (the “Shares”) of Structural Proteomics, Inc., a New Jersey corporation (the “Company”), on the terms and conditions set forth herein;

NOW, THEREFORE, in consideration of the premises and the representations, warranties and agreements set forth below, the parties hereto do hereby agree as follows:

1.        Sale of Shares. On the terms and subject to the conditions of this Agreement, on the Closing Date (as defined in Section 3 hereof), Klebansky shall sell, transfer and deliver to DPI, and DPI shall purchase and acquire from Klebansky, all right, title and interest in and to the Shares for a total purchase price of $1.00 (the “Purchase Price”).

2.        Instruments of Conveyance and Transfer. On the Closing Date, Klebansky shall deliver to DPI against payment of the Purchase Price validly issued certificates for the Shares endorsed with stock transfer powers duly executed in blank.

3.        Closing. Subject to the terms and conditions of this Agreement, the closing with respect to the transactions provided for in this Agreement (the “Closing”) shall take place on December 13, 2002 (the “Closing Date”).

4.        Representations and Warranties of Klebansky. Klebansky represents and warrants to DPI as follows:

(a)    This Agreement constitutes a legal, valid and binding obligation of Klebansky and Klebansky has full right, power and authority to execute, deliver and perform this Agreement.

(b)    Klebansky is the record and beneficial owner of all of the Shares and following the execution of this Agreement and, upon the consummation of the transactions provided for herein, DPI will have good and marketable title to such Shares, free and clear of all claims, liens and encumbrances of any nature whatsoever.

(c)    There are not outstanding any options, warrants, rights (including conversion or preemptive rights) or agreements for the purchase or acquisition from Klebansky of any of the Shares. Klebansky is not a party or subject to any agreement or understanding, and there is no agreement or understanding between any persons and/or entities, which affects or relates to the voting or giving of written consents with respect to any of the Shares. 

(d)    To his knowledge the Company has outstanding 2,933,333 shares of common stock, no other shares of stock, and no derivative securities. 

5.        Representations and Warranties of DPI. DPI represents and warrants to Klebansky as follows:

 

(a)    This Agreement constitutes a legal, valid and binding obligation of DPI and DPI has full right, power and authority to execute, deliver and perform this Agreement.

(b)    The Shares will be acquired for investment for DPI’s own account, not as a nominee or agent, and not with a view to the resale or distribution of any part thereof, and DPI has no present intention of selling, granting any participation in or otherwise distributing the same. DPI does not have any contract, undertaking, agreement or arrangement with any person to sell, transfer or grant participations to such person or to any third person, with respect to any of the Shares.

(c)    DPI is able to fend for itself, can bear the economic risk of its investment, and has such knowledge and experience in financial or business matters that it is capable of evaluating the merits and risks of the investment in the Shares. DPI has not been organized for the purpose of acquiring the Shares.

(d)    DPI is an “accredited investor” within the meaning of Securities and Exchange Commission (“SEC”) Rule 501 of Regulation D, as presently in effect.

(e)    DPI understands that the Shares it is purchasing are characterized as “restricted securities” under the federal securities laws inasmuch as they are being acquired from Klebansky in a transaction not involving a public offering and that under such laws and applicable regulations such securities may be resold without registration under the Securities Act of 1933, as amended (the “Act”) only in certain limited circumstances. In the absence of an effective registration statement covering the Shares or an available exemption from registration under the Act, the Shares must be held indefinitely. In this connection, DPI represents that it is familiar with SEC Rule 144, as presently in effect, and understands the resale limitations imposed thereby and by the Act, including without limitation the Rule 144 condition that current
information about the Company be available to the public. Such information is not now available and the Company has no present plans to make such information available.

(f)     It is understood that the certificates evidencing the Shares may bear the following legend:

“These securities have not been registered under the Securities Act of 1933, as amended. They may not be sold, offered for sale, pledged or hypothecated in the absence of a registration statement in effect with respect to the securities under such Act or unless sold pursuant to Rule 144 of such Act or unless another exemption from such Act is available.”

6.        Transfer. DPI will not sell, transfer, pledge or otherwise dispose of or encumber any of the Shares unless and until (i) such shares are subsequently registered under the Act and each applicable state securities law; or (ii) (1) an exemption from such registration is available thereunder, and (2) DPI has notified the Company of the proposed transfer and has furnished the Company with an opinion of counsel, reasonably satisfactory to the Company, that such transfer will not require registration of such shares under the Act. DPI understands that the Company is not obligated, and does not intend, to register any Shares under the Act or any state securities laws.

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7.        Conditions of DPI’s Obligations at Closing. DPI’s obligations under this Agreement are subject to the fulfillment on or before the Closing of each of the following conditions, the waiver of which shall not be effective against DPI unless DPI consents in writing thereto:

(a)    Representations and Warranties. The representations and warranties of Klebansky contained in Section 4 shall be true on and as of the Closing with the same effect as though such representations and warranties had been made on and as of the Closing Date.

(b)    Performance. Klebansky shall have performed and complied with all agreements, obligations and conditions contained in this Agreement that are required to be performed or complied with by him on or before the Closing.

(c)    Amendment to Rights Agreement. The Company, Klebansky, DPI, Arnold Hagler and Richard Fine shall have entered into an Amendment No. 1 to Rights Agreement in a form acceptable to DPI (the “Rights Amendment”).

(d)    Delivery of Pledged Securities. Klebansky shall have delivered to DPI 67,500 shares of DPI’s common stock (the “DPI Shares”), along with a stock transfer power duly executed in blank. Klebansky acknowledges that such DPI Shares were previously pledged, but not delivered, to DPI in connection with the issuance of that certain secured promissory note dated June 30, 2000, in the original principal amount of $208,000 made payable to DPI (as amended, the “Note”). DPI and Klebansky acknowledge that $198,561.46 of principal and accrued interest remain outstanding under the Note as of November 30, 2002.   

(e)    Amendment of Note. Klebansky and DPI shall have entered into an amendment of the Note extending the maturity date of the Note from December 14, 2002 to December 14, 2003 (the “Note Amendment”). 

8.        Conditions of Klebansky’s Obligations at Closing. Klebansky’s obligations under this Agreement are subject to the fulfillment on or before the Closing of each of the following conditions, the waiver of which shall not be effective against Klebansky unless Klebansky consents in writing thereto:

(a)    Representations and Warranties. The representations and warranties of DPI contained in Section 5 shall be true on and as of the Closing with the same effect as though such representations and warranties had been made on and as of the Closing Date.

(b)    Payment of Purchase Price. DPI shall have delivered the Purchase Price.

(c)    Amendment to Rights Agreement. The Company, Klebansky, DPI, Arnold Hagler and Richard Fine shall have entered into the Rights Amendment.

(d)    Amendment of Note. Klebansky and DPI shall have entered into the Note Amendment.

9.        Issuance of Option. By no later than January 3, 2003, DPI shall issue to Klebansky an option under DPI’s 2000 Stock Incentive Plan (the “Plan”) to purchase up to 25,000 shares of DPI’s common stock, such option to be an incentive stock option to the maximum extent permitted by federal tax statutes and regulations. The option shall vest monthly over four years with a vesting commencement date of January 3, 2003, shall have an exercise price equal to 100% of the fair market value of DPI’s common stock on the date of grant, as reasonably determined by DPI’s board of directors or a committee thereof, and shall be evidenced by DPI’s standard form Notice of Grant/Stock Option Agreement and related exhibits.

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10.      Put Option. In the event Klebansky desires to sell some or all of the DPI Shares that are being held by DPI as collateral for the Note, DPI agrees to release its security interest in the DPI Shares Klebansky desires to sell and to repurchase such DPI Shares subject to the terms and conditions set forth in this Section 10 (the “Put Option”). The Put Option shall be exercisable only by written notice (the “Put Option Notice”) duly executed and delivered by Klebansky to DPI indicating the number of DPI Shares to be repurchased by DPI. The date on which the repurchase is to be effected  (the “Repurchase Closing Date”) shall be the business day on which the Put Option Notice is delivered (if it is delivered on a business day before 1:00 Pacific Time) and otherwise shall be the
following business day. On the Repurchase Closing Date, DPI shall pay a per share purchase price for each DPI Share to be repurchased equal to the average closing prices of DPI’s common stock over the 5 trading days ending on and including the Repurchase Closing Date as quoted on the Nasdaq National Market or other principal national securities exchange (or a similar national quotation system). All proceeds from such repurchase of DPI Shares shall be applied directly by DPI to the outstanding indebtedness on the Note as a prepayment and DPI shall transmit a statement confirming the transaction to Klebansky by facsimile. Notwithstanding anything to the contrary contained herein, the Put Option shall not apply to, and DPI shall not be obligated to repurchase, DPI Shares to the extent the aggregate purchase price for such DPI Shares (as calculated above) exceeds the indebtedness on the Note. The parties acknowledge that DPI does not have any discretion as to the amount or timing of
the repurchase of the DPI Shares. Any remaining DPI Shares that are being heold by DPI as collateral for the Note shall promptly be returned to Klebansky upon full repayment of the indebtedness under the Note.  

11.      Survival. The covenants, agreements, representations and warranties contained in this Agreement shall survive the closing and any delivery of the Purchase Price, irrespective of any investigation made by or on behalf of DPI or Klebansky.

12.      Modification. This Agreement and the documents referenced herein set forth the entire understanding of the parties with respect to the subject matter hereof, supersede all existing agreements among them concerning such subject matter, and may be modified only by a written instrument duly executed by each party.

13.      Assignment; Binding Effect. Neither this Agreement nor any right hereunder or interest herein may be assigned or transferred by Klebansky without the express written consent of DPI. The provisions of this Agreement shall be binding upon and inure to the benefit of DPI and its successors and assigns.

14.      No Third Party Beneficiaries. This Agreement does not create, and shall not be construed as creating, any rights enforceable by any person not a party to this Agreement.

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15.      Counterparts; Governing Law. This Agreement may be executed in any number of counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same instrument. It shall be governed by and construed in accordance with the laws of California, without giving effect to provisions regarding conflicts of law.

   

	 DISCOVERY PARTNERS 
 INTERNATIONAL, INC.
 	  
 	  
 
	 
 
	 Boris Klebansky
 
	 By: 
 	 
 
 
 	  
 	  
 	 
 
 
 	 

	  
 	 
 	  
 	  
 	  
 	 

	  
 	 President
 	  
 	  
 	  
 
									

- 5 -Exhibit 10.12

                              LSI LOGIC CORPORATION
                          EMPLOYEE STOCK PURCHASE PLAN
                              Amended and Restated

      The following constitutes the provisions of the Employee Stock Purchase
Plan (the "Plan") of LSI Logic Corporation amended and restated effective
March 31, 1999.

1. PURPOSE. The purpose of the Plan is to provide employees of the Company and
its Designated Subsidiaries with an opportunity to purchase Common Stock of the
Company through accumulated payroll deductions. It is the intention of the
Company that the Plan qualify as an "Employee Stock Purchase Plan" under Section
423 of the Internal Revenue Code of 1986, as amended. The provisions of the Plan
shall, accordingly, be construed so as to extend and limit participation in a
manner consistent with the requirements of that section of the Code.

2. DEFINITIONS.

      (a) "Board" means the Board of Directors of the Company, or to the extent
authorized by the Board, a Committee of the Board.

      (b) "Code" means the Internal Revenue Code of 1986, as amended.

      (c) "Common Stock" means the common stock of the Company.

      (d) "Company" means LSI Logic Corporation and any Designated Subsidiary of
the Company.

      (e) "Compensation" means, for Offering Periods commencing prior to
November 15, 2000, all regular straight time earnings, exclusive of payments for
overtime, shift premium, incentive compensation, incentive payments, bonuses,
commissions and other compensation. For Offering Periods commencing on or after
November 15, 2000, "Compensation" shall mean all regular and recurring straight
time earnings, payments for overtime, shift premium, incentive compensation,
incentive payments, bonuses, commissions, but exclusive of other compensation.

      (f) "Designated Subsidiary" means any Subsidiary which has been designated
by the Board from time to time in its sole discretion as eligible to participate
in the Plan.

      (g) "Employee" means any individual who is an Employee of the Company for
tax purposes whose customary employment with the Company is at least 20 hours
per week and more than five months in a calendar year. For purposes of the Plan,
the employment relationship will be treated as continuing intact while the
individual is on sick leave or other leave of absence approved in writing by the
Company. Where the period of leave exceeds 90 days and the individual's right to
reemployment is not guaranteed either by statute or by contract, the employment
relationship shall be deemed to have terminated on the 91st day of such leave.
It shall not include any independent

<PAGE>

contractors providing services to the Company or its Subsidiaries, regardless of
the length of such service. (h) "Enrollment Date" means the first Trading Day of
each Offering Period.

      (i) "Exercise Date" means the last Trading Day of each Purchase Period.

      (j) "Fair Market Value" means, as of any date, the value of the Common
Stock determined as follows:

            (1) If the Common Stock is listed on any established stock exchange
or a national market system, its Fair Market Value shall be the closing sales
price for such stock (or the closing bid, if no sales were reported) as quoted
on such exchange or system for the last market trading day on the date of such
determination, as reported by The Wall Street Journal or such other source as
the Board deems reliable;

            (2) If the Common Stock is regularly quoted by a recognized
securities dealer but selling prices are not reported, its Fair Market Value
shall be the mean of the closing bid and asked prices for the Common Stock on
the date of such determination, as reported by The Wall Street Journal or such
other source as the Board deems reliable; or

            (3) In the absence of an established market for the Common Stock,
the Fair Market Value shall be determined in good faith by the Board.

      (k) "Offering Periods" means a period of approximately 12 months during
which an option granted pursuant to the Plan may be exercised as further
described in Section 4, except that the Offering Period that began October 1,
1998 will end on September 29, 2000 and an Offering Period shall commence on
October 1, 2000 and end on November 14, 2000. The duration and timing of
Offering Periods may be changed pursuant to Sections 4 and 20 of this Plan.

      (l) "Plan" means this Amended and Restated Employee Stock Purchase Plan.

      (m) "Purchase Period" means the approximately six-month period commencing
after one Exercise Date and ending with the next Exercise Date, except that the
first Purchase Period of any Offering Period will commence on the Enrollment
Date and end with the next Exercise Date. Notwithstanding the foregoing, with
respect to the Offering Period commencing upon October 1, 2000 and ending on
November 14, 2000, "Purchase Period" shall be the same (approximately) six week
period.

      (n) "Purchase Price" means 85% of the Fair Market Value of a share of
Common Stock on the Enrollment Date or on the Exercise Date, whichever is lower;
provided, however, that with respect to the Offering Periods commencing on or
after January 1, 1999, unless otherwise directed by the Board, if the Fair
Market Value of a share of Common Stock on the date on which additional shares
of Common Stock (the "New Shares") are authorized for issuance hereunder by the
Company's stockholders (the "Authorization Date") is higher than the Fair Market
Value of a share of Common Stock on the Enrollment Date of any outstanding
Offering Period that commenced prior

<PAGE>

to the Authorization Date, the Purchase Price for only New Shares to be issued
on any remaining Exercise Date of any Offering Period in effect on the
Authorization Date shall be 85% of the Fair Market Value of a share of Common
Stock on the Authorization Date or on the Exercise Date, whichever is lower. The
Purchase Price may be adjusted by the Board pursuant to Section 20.

      (o) "Reserves" means the number of shares of Common Stock covered by each
option under the Plan which have not yet been exercised and the number of shares
of Common Stock that have been authorized for issuance under the Plan but not
yet placed under option.

      (p) "Subsidiary" means any corporation, domestic or foreign, of which not
less than 50% of the voting shares are held by the Company or a Subsidiary,
whether or not such corporation now exists or is hereafter organized or acquired
by the Company or a Subsidiary.

      (q) "Trading Day" means a day on which national stock exchanges and the
Nasdaq System are open for trading.

3. ELIGIBILITY.

      (a) Any Employee who is employed by the Company on a given Enrollment Date
shall be eligible to participate in the Plan, subject to the requirements of
Section 5(a) and the limitations imposed by Section 423(b) of the Code.

      (b) Any provisions of the Plan to the contrary notwithstanding, no
Employee shall be granted an option under the Plan (i) to the extent that,
immediately after the grant, such Employee (or any other person whose stock
ownership would be attributed to such Employee pursuant to Section 424(d) of the
Code) would own capital stock and/or hold outstanding options to purchase shares
possessing five percent or more of the total combined voting power or value of
all classes of the capital stock of the Company or of any Subsidiary, or (ii) to
the extent that his or her rights to purchase stock under all employee stock
purchase plans (described in Section 423 of the Code) of the Company and its
Subsidiaries accrue (i.e., become exercisable) at a rate which exceeds $25,000
worth of stock (determined at the fair market value of the shares at the time
such option is granted) for each calendar year in which such option is
outstanding at any time.

4. OFFERING PERIODS. The Plan shall be implemented by consecutive, overlapping
Offering Periods with a new Offering Period commencing on the first Trading Day
on or after May 15 and November 15 each year, or on such other date as the Board
shall determine, and continuing thereafter until terminated in accordance with
Section 20 hereof, except as set forth in this Section 4. The first Offering
Period of the Plan as amended and restated shall commence with the first Trading
Day on or after May 15, 1999 and end on the last Trading Day on or before May
14, 2000. The Offering Period which began on October 1, 1998 will end on
September 29, 2000 and an Offering Period shall commence on October 1, 2000 and
end on November 14, 2000. The Board shall have the power to change the duration
of Offering Periods (including the commencement dates thereof) with respect to
future offerings without stockholder approval, if such change is announced prior
to the scheduled beginning of the first Offering Period to be affected
thereafter.

<PAGE>

5. PARTICIPATION.

      (a) An eligible Employee may become a participant in the Plan by
completing a subscription agreement authorizing payroll deductions in the form
provided by the Company and filing it with the Company payroll office prior to
the applicable Enrollment Date, unless a later time for filing the subscription
agreement is set for all eligible Employees with respect to such Offering
Period.

      (b) Payroll deductions for a participant shall commence with the first
payroll following the Enrollment Date and shall end on the last payroll for the
Offering Period to which the subscription agreement applies, unless sooner
terminated by the participant as provided in Section 10.

6. PAYROLL DEDUCTIONS.

      (a) At the time a participant files his or her subscription agreement, he
or she shall elect to have payroll deductions made on each payday during all
subsequent Offering Periods commencing prior to November 15, 2000 in an amount
not exceeding 10%, and during all Offering Periods commencing on or after
November 15, 2000 in an amount not exceeding 15%, or such other rate as may be
determined from time to time by the Board, expressed as a whole percent, of the
Compensation which he or she receives on such payday during said Offering Period
and the aggregate of such deduction during the Offering Period shall not exceed
10% or 15%, as applicable in accordance with the foregoing, of the aggregate
Compensation during such Offering Period.

      (b) All payroll deductions authorized by a participant shall be credited
to his or her account under the Plan and shall be withheld in whole percentages
only. A participant may not make any additional payments into such account.

      (c) A participant may discontinue his or her participation in the Plan as
provided in Section 10, or may decrease the rate of his or her payroll
deductions (but not below 1%) effective immediately or may increase (but not
above 10% and for Offering Periods commencing on or after November 15, 2000, not
above 15%) the rate of his payroll deductions effective as of the first date of
the next Purchase Period within such Offering Period by completing and filing
with the Company a new subscription agreement authorizing a change in payroll
deduction. The Board may, in its discretion, limit the number of participation
rate changes during any Offering Period. The change in rate shall be effective
as soon as administratively feasible following the Company's receipt of the new
authorization. A participant's subscription agreement shall remain in effect for
successive Offering Periods unless terminated as provided in Section 10.

      (d) Notwithstanding the foregoing, to the extent necessary to comply with
Section 423(b)(8) of the Code and Section 3(b) of the Plan, a participant's
payroll deductions may be automatically decreased to zero percent at any time
during a Purchase Period. Payroll deductions shall recommence at the rate
provided in such participant's subscription agreement at the beginning of the
first Purchase Period which is scheduled to end in the following calendar year,
unless terminated by the participant as provided in Section 10.

<PAGE>

      (e) At the time the option is exercised, in whole or in part, or at the
time some or all of the Company's Common Stock issued under the Plan is disposed
of, the participant must make adequate provision for the Company's federal,
state or other tax withholding obligations, if any, which arise on the exercise
of the option or the disposition of the Common Stock. At any time the Company
may, but shall not be obligated to, withhold from the participant's compensation
the amount necessary for the Company to meet applicable withholding obligations,
including any withholding required to make available to the Company any tax
deductions or benefits attributable to sale or early disposition of Common Stock
by the Employee.

7. GRANT OF OPTION. On each Enrollment Date of each Offering Period, each
eligible Employee participating in such Offering Period shall be granted an
option to purchase on each Exercise Date during such Offering Period (at the
applicable Purchase Price) up to a number of full shares of the Company's Common
Stock determined by dividing such Employee's payroll deductions accumulated for
that Exercise Date and retained in the Employee's account as of the Exercise
Date by the applicable Purchase Price; provided that in no event shall an
Employee be permitted to purchase more than 1,000 shares in each Purchase Period
within Offering Periods commencing in the year 2003, provided further that such
purchase shall be subject to the limitations set forth in Sections 3(b) and 13.
The Board may, for future Offering Periods, increase or decrease, in its
absolute discretion, the maximum number of shares of the Company's Common Stock
an Employee may purchase during each Purchase Period of such Offering Period.
Exercise of the option shall occur as provided in Section 8, unless the
participant has withdrawn pursuant to Section 10. The option shall expire on the
last day of the Offering Period.

8. EXERCISE OF OPTION.

      (a) Unless a participant withdraws from the Offering Period as provided in
Section 10, his or her option for the purchase of shares will be exercised
automatically on the Exercise Date, and the maximum number of full shares
subject to option will be purchased at the applicable Purchase Price with the
accumulated payroll deductions in his or her account. For this purpose, only
payroll deductions from payroll dates that are more than three business days
before an Exercise Date will be applied to the purchase of shares on that
Exercise Date. Payroll deductions from payroll dates that occur on an Exercise
Date or within three business days before an Exercise Date will be applied to
the purchase of shares on the next following Exercise Date. In any event, no
fractional shares will be purchased. Any payroll deductions accumulated in a
participant's account that are not sufficient to purchase a full share or that
exceed the $25,000 cap described in Section 3 above will be refunded to the
participant following the purchase of shares, subject to earlier withdrawal by
the participant as provided in Section 10 or unless the Offering Period has been
over-subscribed, in which event such amount shall be refunded to the
participant. During his or her lifetime, a participant's option to purchase
shares hereunder is exercisable only by the participant.

      (b) If the Board determines that, on a given Exercise Date, the number of
shares with respect to which options are to be exercised may exceed (i) the
number of shares of Common Stock that were available for sale under the Plan on
the Enrollment Date of the applicable Offering Period, or (ii) the number of
shares available for sale under the Plan on such Exercise Date, the Board may in

<PAGE>

its sole discretion provide that the Company shall make a pro rata allocation of
the shares of Common Stock available for purchase on such Enrollment Date or
Exercise Date, as applicable, in as uniform a manner as shall be practicable and
as it shall determine in its sole discretion to be equitable among all
participants exercising options to purchase Common Stock on such Exercise Date,
and (x) continue all Offering Periods then in effect, or (y) terminate any or
all Offering Periods then in effect pursuant to Section 20. The Company may make
pro rata allocation of the shares available on the Enrollment Date of any
applicable Offering Period pursuant to the preceding sentence, notwithstanding
any authorization of additional shares for issuance under the Plan by the
Company's stockholders subsequent to such Enrollment Date.

9. DELIVERY. As promptly as practicable after each Exercise Date on which a
purchase of shares occurs, the Company shall arrange for the shares purchased
upon exercise of his or her option to be electronically credited to the
participant's brokerage account at the securities brokerage firms designated by
the Company for its direct deposit program from time to time.

10. WITHDRAWAL; TERMINATION OF EMPLOYMENT.

      (a) A participant may withdraw all, but not less than all, the payroll
deductions credited to his or her account and not yet used to exercise his or
her option under the Plan at any time by giving written notice to the Company on
a form provided for such purpose. All of the participant's payroll deductions
credited to his or her account will be paid to the participant as soon as
practicable after receipt of the notice of withdrawal, his or her option for the
current Offering Period will be automatically canceled, and no further payroll
deductions for the purchase of shares will be made during such Offering Period.
If a participant withdraws from an Offering Period, payroll deductions shall not
resume at the beginning of the succeeding Offering Period unless the participant
delivers to the Company a new subscription agreement.

      (b) A participant's withdrawal from an Offering Period will not have any
effect upon his or her eligibility to participate in a succeeding Offering
Period which begins after the end of the Offering Period from which the
participant withdraws or in any similar plan which may hereafter be adopted by
the Company.

11. TERMINATION OF EMPLOYMENT. Upon a participant's ceasing to be an Employee
for any reason, including retirement or death, he or she will be deemed to have
elected to withdraw from the Plan and the payroll deductions accumulated in his
or her account during the Offering Period but not yet used to exercise the
option will be returned to him or her as soon as practicable after such
termination or, in the case of death, to the person or persons entitled thereto
under Section 15, and his or her option will be automatically terminated. The
preceding sentence notwithstanding, a participant who receives payment in lieu
of notice of termination of employment shall be treated as continuing to be an
Employee for the participant's customary number of hours per week of employment
during the period in which the participant is subject to such payment in lieu of
notice. In the case of death of the participant, the payroll deductions credited
to the participant's account will be paid to the person or persons entitled
thereto under paragraph 15, and such participant's option will be automatically
terminated, except that the beneficiary may elect to have funds remain in the
participant's account until the next Exercise Date in which case the shares
purchased with the funds

<PAGE>

in the participant's account at the time of death in accordance with paragraph 8
will be forwarded to the beneficiary.

12. INTEREST. No interest shall accrue on the payroll deductions of a
participant in the Plan.

13. STOCK.

      (a) Subject to adjustment upon changes in capitalization of the Company as
provided in Section 19, the maximum number of shares of the Company's Common
Stock which shall be reserved for sale under the Plan shall be 60,314,110
shares, plus an annual increase to be added as of the first day of each fiscal
year by an amount equal to (x) 1.15% of the shares of the Company's Common Stock
issued and outstanding on the last day of the immediately preceding fiscal year
less (y) the number of shares available for future option grants under the Plan
on the last day of the immediately preceding fiscal year, or a lesser amount
determined by the Board, but not to exceed 3,000,000 shares (subject to any
adjustment pursuant to Section 19) in any fiscal year.

      (b) The participant will have no interest or voting rights in shares
covered by his or her option until such option has been exercised.

      (c) Shares to be delivered to a participant under the Plan shall be
registered in the name of the participant or in the name of the participant and
his or her spouse.

14. ADMINISTRATION. The Plan shall be administered by the Board or a committee
of members of the Board appointed by the Board. The Board or its committee shall
have full and exclusive discretionary authority to construe, interpret and apply
the terms of the Plan, to determine eligibility and to adjudicate all disputed
claims filed under the Plan. Every finding, decision and determination made by
the Board or its committee shall, to the full extent permitted by law, be final
and binding upon all parties.

15. DESIGNATION OF BENEFICIARY.

      (a) A participant may file a written designation of a beneficiary who is
to receive shares and/or cash, if any, from the participant's account under the
Plan in the event of such participant's death at a time when cash or shares are
held for his or her account. If the participant is married and the designated
beneficiary is not the spouse, spousal consent shall be required for such
designation to be effective.

      (b) Such designation of beneficiary may be changed by the participant at
any time by written notice. In the event of the death of a participant in the
absence of a valid designation of a beneficiary 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 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 reasonably designate.

<PAGE>

16. TRANSFERABILITY. Neither payroll deductions credited to a participant's
account nor any rights with regard to the exercise of an option or to receive
shares under the Plan may be assigned, transferred, pledged or otherwise
disposed of in any way (other than by will, the laws of descent and
distribution, or as provided in Section 15 hereof) by the participant. Any such
attempt at assignment, transfer, pledge or other disposition shall be without
effect, except that the Company may treat such act as an election to withdraw
funds in accordance with Section 10.

17. USE OF FUNDS. All payroll deductions received or held by the Company under
the Plan may be used by the Company for any corporate purpose, and the Company
shall not be obligated to segregate such payroll deductions.

18. REPORTS. Individual accounts will be maintained for each participant in the
Plan. Statements of account will be given to participating Employees at least
annually, and will set forth the amounts of payroll deductions, the Purchase
Price, the number of shares purchased and the remaining cash balance to be
refunded, if any.

19. ADJUSTMENTS UPON CHANGES IN CAPITALIZATION.

      (a) Changes in Capitalization. Subject to any required action by the
stockholders of the Company, the Reserves, the maximum number of shares each
participant may purchase each Purchase Period (under Section 7), as well as the
price per share and the number of shares of Common Stock covered by each option
under the Plan that has not yet been exercised, shall be proportionately
adjusted for any increase or decrease in the number of issued shares of Common
Stock resulting from a stock split, reverse stock split, stock dividend,
combination or reclassification of the Common Stock or any other increase or
decrease in the number of shares of Common Stock effected without receipt of
consideration by the Company; provided, however, that conversion of any
convertible securities of the Company shall not be deemed to have been "effected
without receipt of consideration." Such adjustment shall be made by the Board,
whose determination in that respect shall be final, binding and conclusive.
Except as expressly provided herein, no issuance by the Company of shares of
stock of any class, or securities convertible into shares of stock of any class,
shall affect, and no adjustment by reason thereof shall be made with respect to,
the number or price of shares of Common Stock subject to option.

      (b) Dissolution or Liquidation. In the event of the proposed dissolution
or liquidation of the Company, the Offering Period then in progress will be
shortened by setting a new Exercise Date (the "New Exercise Date"), and shall
terminate immediately prior to the consummation of such proposed dissolution or
liquidation, unless otherwise provided by the Board. The New Exercise Date shall
be before the date of the Company's proposed dissolution or liquidation. The
Company shall notify each participant in writing at least ten business days
prior to the New Exercise Date, that the Exercise Date for the participant's
option has been changed to the New Exercise Date and that the participant's
option shall be exercised automatically on the New Exercise Date, unless prior
to such date the participant has withdrawn from the Offering Period as provided
in Section 10.

<PAGE>

      (c) Merger or Asset Sale. In the event of a proposed sale of all or
substantially all of the assets of the Company, or the merger of the Company
with or into another corporation, each option under the Plan shall be assumed or
an equivalent option shall be substituted by the successor corporation or a
parent or Subsidiary of the successor corporation. If the successor corporation
refuses to assume or substitute for the option, any Purchase Periods then in
progress shall be shortened by setting a new Exercise Date (the "New Exercise
Date") and any Offering Periods then in progress shall end on the New Exercise
Date. The New Exercise Date shall be before the date of the Company's proposed
sale or merger. The Company shall notify each participant in writing prior to
the New Exercise Date, that the Exercise Date for the participant's option has
been changed to the New Exercise Date and that the participant's option will be
exercised automatically on the New Exercise Date, unless prior to such date the
participant has withdrawn from the Offering Period as provided in Section 10.

The Board may, if it so determines in the exercise of its sole discretion, also
make provision for adjusting the Reserves, as well as the price per share of
Common Stock covered by each outstanding option, in the event that the Company
effects one or more reorganizations, recapitalizations, rights offerings or
other increases or reductions of shares of its outstanding Common Stock, and in
the event of the Company being consolidated with or merged into any other
corporation.

20. AMENDMENT OR TERMINATION.

      (a) The Board of Directors of the Company may at any time and for any
reason terminate or amend the Plan. Except as provided in Section 19, no such
termination will affect options previously granted, provided that an Offering
Period may be terminated by the Board on any Exercise Date if the Board
determines that the termination of the Offering Period or the Plan is in the
best interests of the Company and its stockholders. Except as provided in
Section 19 and this Section 20, no amendment may make any change in any option
theretofore granted which adversely affects the rights of any participant. To
the extent necessary to comply with Section 423 of the Code (or any successor
rule or provision or any other applicable law, regulation or stock exchange
rule), the Company shall obtain stockholder approval in such a manner and to
such a degree as required.

      (b) Without stockholder consent and without regard to whether any
participant rights may be considered to have been "adversely affected," the
Board (or its committee) shall be entitled to change the Offering Periods, limit
the frequency and/or number of changes in the amount withheld during an Offering
Period, establish the exchange ratio applicable to amounts withheld in a
currency other than U.S. dollars, permit payroll withholding in excess of the
amount designated by a participant in order to adjust for delays or mistakes in
the Company's processing of properly completed withholding elections, establish
reasonable waiting and adjustment periods and/or accounting and crediting
procedures to ensure that amounts applied toward the purchase of Common Stock
for each participant properly correspond with amounts withheld from the
participant's Compensation and establish such other limitations or procedures as
the Board determines in its sole discretion advisable which are consistent with
the Plan.

      (c) In the event the Board determines that the ongoing operation of the
Plan may result in unfavorable financial accounting consequences, the Board may,
in its discretion and, to the extent

<PAGE>

necessary or desirable, modify or amend the Plan to reduce or eliminate such
accounting consequence including, but not limited to:

            (i) altering the Purchase Price for any Offering Period including an
Offering Period underway at the time of the change in Purchase Price;

            (ii) shortening any Offering Period so that the Offering Period ends
on a new Exercise Date, including an Offering Period underway at the time of the
Board action; and

            (iii) allocating shares.

Such modifications or amendments shall not require stockholder approval or the
consent of any Plan participants.

21. NOTICES. All notices or other communications by a participant to the Company
in connection with the Plan shall be deemed to have been duly given when
received in the form specified by the Company at the location, or by the person,
designated by the Company for the receipt thereof. Notices given by means of the
Company's intranet (Planet) or similar system will be deemed to be written
notices under the Plan.

22. CONDITIONS UPON ISSUANCE OF SHARES. Shares shall not be issued with respect
to an option unless the exercise of such option and the issuance and delivery of
such shares pursuant thereto shall comply with all applicable provisions of law,
domestic or foreign, including, without limitation, the Securities Act of 1933,
as amended, the Securities Exchange Act of 1934, as amended, the rules and
regulations promulgated thereunder, and the requirements of any stock exchange
upon which the shares may then be listed, and shall be further subject to the
approval of counsel for the Company with respect to such compliance.

As a condition to the exercise of an option, if required by applicable
securities laws, the Company may require the participant for whose account the
option is being exercised to represent and warrant at the time of such exercise
that the shares are being purchased only for investment and without any present
intention to sell or distribute such shares if, in the opinion of counsel for
the Company, such a representation is required by any of the aforementioned
applicable provisions of law.

23. TERM OF PLAN. The Plan shall become effective upon the earlier to occur of
its adoption by the Board of Directors of the Company or it is approved by the
stockholders. It shall continue in effect for a term of 10 years unless sooner
terminated under Section 20.

24. EMPLOYMENT RELATIONSHIP Nothing in the Plan shall be construed as creating a
contract for employment for any period or shall interfere with or limit in any
way the right of the Company or of any Subsidiary to terminate any participant's
employment relationship at any time, with or without cause, nor confer upon any
participant any right to continue in the employ of the Company or any
Subsidiary.

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