key logger for web page !!Please HELP!!

Hi guyz
im am just opening a web site an i would like to no if i can put a keylogger in the website so that i could see every thing they type.

I am Really STUCK

:confused: PLEASE HELP ME :confused:

my guess is that you can upload some file with the keylogger "in it" and people downloading and seeing the file or installing the file would be automatically installing the keylogger

if they [B]just vist[/B] my web page would it install it automatically