anyone can fix "[Ajax]Relevant new post check" for utf-8, unicode?

[composee]

hi~
any1 can help me?

i use this mod [Ajax]Relevant new post check for vbb 3.7

[Ajax] Relevant thread Checker Before new Post - vBulletin.org Forum

but this mod working good with english title thread..i inputed

but when i input korean title thread(utf-8[korean], unicode) dont working..

can any1 fix this mod for utf-8,unicode?

help me~: )

thanks