In Germany, Sir :)
It would be better If you can typing in thai in case you do not have Thai Language in your system windows you can download from here
http://www.easyhome.in.th/download/showlink.asp?CatID=143&parentID=2&parentname=Graphics+Tools&Subname=Thai (http://www.easyhome.in.th/download/showlink.asp?CatID=143&parentID=2&parentname=Graphics+Tools&Subname=Thai)
Go to this webpage Virtual Thai keyboard typing in thai and copy and past to webboard
http://learningthai.com/thaikeyboard/ (http://learningthai.com/thaikeyboard/)
print out the picture below for thai keyboard layout