I pasted a big wadge of stuff into the advanced editor and went to preview it and got 3 JS alerts about hidden values being undefined.
Lines 59, 86, 113, 144 hidden_values is undefined
Also all URL's are having &'s replaced with &'s
Lines 59, 86, 113, 144 hidden_values is undefined
Also all URL's are having &'s replaced with &'s