select all lines of list field

[cowhead]

To select ALL the lines of a list field, the following script works well
enough, but seems a bit silly.  Easier way?

on XXX
repeat with i = 1 to the number of lines of field myfield
put i & "," after myVar
end repeat
set the hilitedLines of field myField to myVar
end XXXX

thanks,

mark mitchell
Japan