2G home button doesn't work - resistor values for R7 and R8?

[mdahacks]

hi all-

we have an iphone 2g with a non-functional home button. the reason (hopefully the only reason) is that the resistor underneath the button ribbon membrane (R8) has corroded and crumbled apart...

does someone know the resistor values for R7 and R8?

pictures are here:
http://www.mdahacks.com/iphone-home-button.htm

thanks!