"mask" password text in body of script

Just putting together simple AppleScripts to login to various https sites.

Wonder if its possible to have this:

tell application “Firefox”
activate
end tell
property target_URL : “https://www.blahblahblah.com

open location target_URL

tell application “System Events”

 [b]keystroke[/b] "username"
 [b]keystroke[/b] [b]tab[/b]
 [b]keystroke[/b] "password"
 [b]keystroke[/b] [b]return[/b]

end tell


Read like this:

 [b]keystroke[/b] "¢¢¢¢¢¢¢"
 [b]keystroke[/b] [b]tab[/b]
 [b]keystroke[/b] "¢¢¢¢¢¢¢"
 [b]keystroke[/b] [b]return[/b]

end tell

[color coded syntax by [url=http://homepage.mac.com/jonn8/as/]Convert Script to Markup Code[/url]]

See post 4 and 5 of this thread on macosxhints. Mac OS X Hints - A community-built collection of OS X hints

the explain about using keychain for web page logins.