Common use of Time of Exercise Clause in Contracts

Time of Exercise. The purchase rights represented by this Warrant may be exercised in whole or in part during the Term for such number of shares of Common Stock equal to fifty percent (50%) of the number of shares of Common Stock that have been exercised by the Holder pursuant to the Series J Warrant issued by the Issuer to the Holder pursuant to the Purchase Agreement.

Time of Exercise. The purchase rights represented by this Warrant may be exercised in whole or in part during the Term for such number of shares of Common Stock equal to fifty percent (50%) of the number of shares of Common Stock that have been exercised by the Holder pursuant to the Series J Warrant issued by the Issuer to the Holder pursuant to the Purchase Agreementset forth above.

Time of Exercise. The purchase rights represented by this Warrant Option may be exercised in whole or in part during the Term for such number of shares of Common Stock equal to fifty percent (50%) of the number of shares of Common Stock that have been exercised by the Holder pursuant to the Series J Warrant issued by the Issuer to the Holder pursuant to the Purchase Agreementset forth above.

Time of Exercise. The purchase rights represented by this Warrant may be exercised in whole or in part during the Term for such number of shares of Common Stock equal to fifty percent (50%) of the number of shares of Common Stock that have been exercised by the Holder pursuant to the Series J Warrant issued by the Issuer to the Holder pursuant to the Purchase Agreement.

Time of Exercise. The purchase rights represented by to purchase seventy-five percent (75%) of the number of shares of Common Stock issuable upon exercise of this Warrant may be exercised in whole or in part during the Term. The remaining twenty-five percent (25%) of the number of shares of Common Stock issuable upon exercise of this Warrant may be exercised in whole or in part during the Term for such number of shares of Common Stock equal to fifty percent (50%) commencing upon full payment of the number of shares of Common Stock that have been exercised by required funds on the Holder pursuant to the Series J Warrant issued by the Issuer to the Holder pursuant to Second Closing Date (as defined in the Purchase Agreement).

Time of Exercise. The purchase rights represented by this Warrant may be exercised in whole or in part during the Term for such number of shares of Common Stock set forth above, which number is equal to fifty one hundred percent (50100%) of the number of shares of Common Stock that have been exercised by the Holder pursuant to into which the Series J Warrant A Convertible Preferred Stock issued by the Issuer to the Holder on the Original Issue Date pursuant to the Purchase AgreementAgreement may be converted.

Time of Exercise. The purchase rights represented by this Warrant may be exercised in whole or in part during the Term for such number of shares of Common Stock equal to fifty percent (50%) of the number of shares of Common Preferred Stock that have been exercised by the Holder pursuant to the Series J Warrant issued by the Issuer to the Holder pursuant to the Purchase Agreement.

Time of Exercise. The purchase rights represented by this Warrant may be exercised in whole or in part during the Term for fifty percent (50%) of such number of shares of Common Stock equal to fifty percent (50%) of into which the number of shares of Common Series B Convertible Preferred Stock that have been exercised by the Holder pursuant to the Series J Warrant issued by the Issuer to the Holder pursuant to the Purchase AgreementAgreement may be converted.

Time of Exercise. The purchase rights represented by this Warrant may be exercised in whole or in part during the Term for such number of shares of Common Stock equal to fifty one hundred percent (50100%) of the number of shares of Common Stock issuable upon conversion of the shares of preferred stock of the Issuer that have been exercised by the Holder pursuant to the Series J Warrant issued granted by the Issuer to the Holder pursuant to the Purchase Agreement.

Time of Exercise. The purchase rights represented by this Warrant may be exercised in whole or in part during the Term for such number of shares of Common Series B Stock set forth above, which number is equal to fifty one hundred percent (50100%) of the number of shares of Common Series B Stock that have been exercised by the Holder pursuant to the Series J Warrant issued by the Issuer to the Holder on the Original Issue Date pursuant to the Purchase Agreement.

Time of Exercise. The purchase rights represented by this Warrant may be exercised in whole or in part during the Term for such number of shares of Common Stock equal to fifty percent (50%) of into which the number of shares of Common Series B Convertible Preferred Stock that have been exercised by the Holder pursuant to the Series J Warrant issued by the Issuer to the Holder pursuant to the Purchase AgreementAgreement may be converted.

Time of Exercise. The purchase rights represented by this Warrant may be exercised in whole or in part during the Term at any time in accordance with the terms of the Purchase Agreement for such number of shares of Common Stock equal to fifty percent (50%) of the number of shares of Common Stock issuable upon conversion of the shares of Series B-2 Convertible Preferred Stock that have been exercised by the Holder pursuant to the Series J Warrant issued by the Issuer to the Holder pursuant to the Purchase Agreement.

Time of Exercise. The purchase rights represented by this Warrant may be exercised in whole or in part during the Term for such number of shares of Common Stock equal to fifty ten percent (5010%) of the number of shares of Common Stock that have been exercised issued upon an exercise by the Holder pursuant to any holder of the Series J Warrant A Warrants issued by the Issuer to the Holder pursuant to the Purchase Agreement.

Time of Exercise. The purchase rights represented by this Warrant may be exercised in whole or in part during the Term for such number of shares of Common Stock set forth above, which number is equal to fifty forty percent (5040%) of the number of shares of Common Stock that have been exercised by the Holder pursuant to into which the Series J Warrant A Convertible Preferred Stock issued by the Issuer to the Holder on the Original Issue Date pursuant to the Purchase AgreementAgreement may be converted.

Time of Exercise. The purchase rights represented by this Warrant may be exercised in whole or in part during the Term for such number of shares of Common Stock set forth above, which number is equal to fifty twenty two percent (5022%) of the number of shares of Common Stock that have been exercised by the Holder pursuant to into which the Series J Warrant A Convertible Preferred Stock issued by the Issuer to the Holder on the Original Issue Date pursuant to the Purchase AgreementAgreement may be converted.

Time of Exercise. The purchase rights represented by this Warrant may be exercised in whole or in part at any time and from time to time during the Term for such number of shares of Common Stock (including any Common Stock issuable under Series D-2 Preferred Stock delivered pursuant to the Series M Warrant, without giving effect to any ownership limitations contained therein for purposes of this calculation) equal to fifty percent (50%) of the number of shares of Common Stock that have been exercised by the Holder pursuant to the Series J M Warrant issued by the Issuer to the Holder pursuant to the Purchase Agreement.

Time of Exercise. The purchase rights represented by this Warrant may be exercised in whole or in part during the Term for such number of shares of Common Stock equal to fifty percent (50%) the pro rata amount of the number of shares of Common Stock that have been exercised by the Holder pursuant to the Series J C Warrant issued by the Issuer to the Holder pursuant to the Purchase Agreement.

Time of Exercise. The purchase rights represented by this Warrant may be exercised in whole or in part during the Term for such number of shares of Common Stock set forth above, which number is equal to fifty percent (50%) of the number of shares of Common Stock that have been exercised by the Holder pursuant to into which the Series J Warrant B Convertible Preferred Stock issued by the Issuer to the Holder on the Original Issue Date pursuant to the Purchase AgreementAgreement may be converted.

Time of Exercise. The purchase rights represented by this Warrant may be exercised in whole or in part at any time and from time to time during the Term Term; provided, however, that the approval of the stockholders of the Company shall be required for such number the exercise of this Warrant for more than 495,732 shares of Common Stock equal to fifty percent (50%) of the number of shares of Common Stock that have been exercised by the Holder pursuant to the Series J Warrant issued by the Issuer to the Holder pursuant to the Purchase AgreementStock.

Time of Exercise. The purchase rights represented by this Warrant may be exercised in whole or in part during the Term for such number of shares of Common Stock equal to fifty sixty percent (5060%) of the number of shares of Common Stock that have been exercised by the Holder pursuant to the Series J Warrant issued by the Issuer to the Holder pursuant to the Purchase Agreement.

Time of Exercise. The purchase rights represented by this Warrant may be exercised in whole or in part during the Term for such number of shares of Common Stock equal to fifty percent (50%) of the number of shares of Common Stock issuable upon conversion of the shares of preferred stock of the Issuer that have been exercised by the Holder pursuant to the Series J Warrant issued granted by the Issuer to the Holder pursuant to the Purchase Agreement.

Time of Exercise. The purchase rights represented by this Warrant may be exercised in whole or in part during the Term for such number of shares of Common Stock set forth above, which number is equal to fifty twenty three percent (5023%) of the number of shares of Common Stock that have been exercised by into which the Holder pursuant to the Series J Warrant Convertible Note issued by the Issuer to the Holder on the Date of Issuance pursuant to the Purchase AgreementAgreement may be converted.

Time of Exercise. The purchase rights represented by this Warrant may be exercised in whole or in part during the Term Term. 1 Exercisable for such number of shares of Common Stock equal to fifty percent (50%) of the number of shares of Common Stock issuable upon conversion of the shares of Series B Convertible Preferred Stock that have been exercised by the Holder pursuant to the Series J Warrant issued by the Issuer to the Holder pursuant to the Purchase Agreementupon exercise of its Series J Warrant.

Time of Exercise. The purchase rights represented by this Warrant may be exercised in whole or in part at any time and from time to time during the Term Term; provided, however, that the approval of the stockholders of the Company shall be required for such number the exercise of this Warrant for more than 660,976 shares of Common Stock equal to fifty percent (50%) of the number of shares of Common Stock that have been exercised by the Holder pursuant to the Series J Warrant issued by the Issuer to the Holder pursuant to the Purchase AgreementStock.

Time of Exercise. The purchase rights represented by this Warrant may be exercised in whole or in part during the Term for such number of shares of Common Stock set forth above, which number is equal to fifty one hundred percent (50100%) of the number of shares of Common Stock that have been exercised by the Holder pursuant to into which the Series J Warrant B Convertible Preferred Stock issued by the Issuer to the Holder on the Original Issue Date pursuant to the Purchase AgreementAgreement may be converted.

Time of Exercise. The purchase rights represented by this Warrant may be exercised in whole or in part during the Term Term. ________________________________________ 1 Exercisable for such number of shares of Common Stock equal to fifty percent (50%) of the number of shares of Common Stock issuable upon conversion of the shares of Series B Convertible Preferred Stock that have been exercised by the Holder pursuant to the Series J Warrant issued by the Issuer to the Holder pursuant to the Purchase Agreementupon exercise of its Series J Warrant.

Time of Exercise. The purchase rights represented by this Warrant may be exercised in whole or in part during the Term for such number of shares of Common Stock equal to fifty percent (50%) of the such number of shares of Common Stock that have been exercised by the Holder pursuant to the Series J Warrant issued by the Issuer to the Holder pursuant to the Purchase Agreement.

Time of Exercise. The purchase rights represented by this Warrant may be exercised in whole or in part during the Term for such number of shares of Common Stock equal to fifty percent (50%) of the number of shares of Common Stock that have been exercised by the Holder pursuant to the Series J Warrant issued by the Issuer to the Holder pursuant to the Purchase Agreement. _________________________ Post 20-for-1 forward stock split to be effected on December 11, 2006.