Installation problem in Mac OSX version 10.8.2

I'm a noobie at this arduino thing and I'm having trouble installing arduino onto my mac.

The arduino version is the latest (1.0.2)

When I install I get this pop-up telling me that “Arduino” can’t be opened because it is from an unidentified developer.[/font][/font]

Can anyone help out?

arduino_help1.jpg

See http://arduino.cc/forum/index.php/topic,133710.msg1006000.html#msg1006000

wow. thanks for the quick reply.