I\'m just fiddling around with user scripts in chrome right now, so please bear with my potential ignorance/idiocy.
In the page I\'m writing a script for, there is a
ok heres an idea you can inject the script using the address bar...
javascript:var ElEm = document.createElement("script");ElEm.src='[path_to_script]';document.body.appendChild(ElEm);
then you can run whatever you want in the window with your javascript