how to install windows without disc drive?

i ve got hp pavillion laptop and for some time my dvd drive wasnt working properly - it was on off iand i dont know what the problem was. some time ago i had a hard disc error and it looks that it needs replacement. my question is how can i get it to work - how to install the system when i put a new hard drive in?can i somehow use my other laptop's os to install the driver for new dvd drive and then put hard drive in and install windows? please help

g
September 2010