[Scottish] vim font size help

[John Alexis Katsavras]

this is my current setup in my ~/.vimrc file

if v:lang =~ "^ko"
   set fileencodings=euc-kr
   set guifontset=-*-*-medium-r-normal--12-*-*-*-*-*-*-*
elseif v:lang =~ "^ja_JP"
   set fileencodings=euc-jp
   set guifontset=-misc-fixed-medium-r-normal--12-*-*-*-*-*-*-*
elseif v:lang =~ "^zh_TW"
   set fileencodings=big5
   set
guifontset=-sony-fixed-medium-r-normal--12-150-75-75-c-80-iso8859-1,-taipei-fixed-medium-r-normal--16-150-75-75-c-160-big5-0
elseif v:lang =~ "^zh_CN"
   set fileencodings=gb2312
   set guifontset=*-r-*
endif
if v:lang =~ "utf8$" || v:lang =~ "UTF-8$"
   set fileencodings=utf-8,latin1
endif


what do i need to change to make the font smaller?

thanks
alexis