Apple

I am attempting to write the following script to automate changing the login screen desktop picture.

I'm missing something and could use some help.

Here is the script:

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display dialog "This program will change your login screen background to a picture that you select. Do you wish to continue?"

tell application "Finder"

set image_path to choose file with prompt "Choose an image that you want to set for the background"

end tell

set my_image to POSIX path of image_path as string

do shell script "defaults write /Library/Preferences/com.apple.loginwindow DesktopPicture " & my_image with administrator privileges

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Here is the error I get:

"defaults[980:923] Unexpected argument Pictures/Jaguar; leaving defaults unchanged"

Here is the path to the file I choose: "/Library/Desktop Pictures/Jaguar Aqua Blue.jpg"

I'm thinking it has something to do with the spaces, but I'm unsure as how to fix this.

Any ideas?

thanks

dale