Ok, so I have been trying to fix this for a while now, I searched and found a couple of solutions that did not work for me, I don't know that much about computers either, I'm getting:

Line:18
Char:2
Error: "Global" is undefined
Code:0
URL: http://frontier.ffxiv.com/arr_win/in...ime=2014-12-13

Do you want to continue running scripts on this page

Yes No

I don't know what else to do does not let me log in, the launcher is completely black, I tried both yes and no and nothing, even re-installing it, nothing