Using password to show/hide forms - any way to retain "doesn't print" setting?

I got a script from George_Johnson that allows me to enter a password to show/hide selected fields (buttons actually).  It works perfectly, but when I enter the password and the buttons re-appear, their General/Common Properties setting reverts back to "visible" instead of "visible but doesn't print", and the buttons show up when I print the document out.  I was thinking I could change these lines and keep the buttons from printing...

case "password": // Your password goes here

        getField("x").readonly = readonly;

        getField("x").display = readonly ? display.hidden : display.visible

        app.alert("Level 1 support is now " + readonly_desc + "d.", 3);

        break;

...by changing the 3rd line to read like this:  getField("x").display = readonly ? display.hidden : display.visible but doesn't print;  (or _but_doesn't_print;)

but then I started getting syntax errors in the 4th line.  I don't know java at all, but I thought I might get lucky.  Am I getting warm?  Is it the "3" that needs to change?  Or is what I've started completely wrong?

Thanks for reading,

Zac