Can I set the default printer in mac os X

Hi.
How can I set the default printer in mac os x.
I use the code below but it is missed


tell application "Printer Setup Utility"
	set printerList to name of every printer
end tell
choose from list printerList with prompt "Escolha a impressora"
set thePrinter to item 1 of result

tell application "Printer Setup Utility"
	set current printer to thePrinter
end tell

thanks

Try:

set current printer to first printer whose name is thePrinter