Exhibit 99.1

Pursuant to Rule 13d-1(k)(1)(iii) of Regulation 13D-G of the General Rules and Regulations of the Securities and Exchange Commission under the Securities and Exchange Act of 1934, as amended, the undersigned agree that the statement to which this Exhibit is attached is filed on behalf of each of them.

		Draper Fisher Associates Fund IV, L.P.
Dated:	February 10, 2003	By:	/s/    TIM DRAPER
			Tim Draper Managing Director
		Draper Fisher Management Company IV, LLC
		By:	/s/    TIM DRAPER
			Tim Draper Managing Director
		By:	/s/    TIMOTHY C. DRAPER
			Timothy C. Draper
		By:	/s/    JOHN H. N. FISHER
			John H. N. Fisher
		By:	/s/    STEPHEN T. JURVETSON
			Stephen T. Jurvetson
		Draper Fisher Partners IV, LLC
		By:	/s/    TIM DRAPER
			Tim Draper Managing Director