Some good quality userscript

I instaled greasemonkey and i need some userscipt which works like cavern link checker and will give me which link is in function with green mark and which is in not with red x…mostly to work with rapidgator,keep2share and many other filesharing servers…do you have something in mind??
Answer #1
We use this.

http://usa.x10host.com/mybb/showthread.php?tid=23
Not sure if it’s the correct link, I’m on my phone atm so had to work out.