It works now, so I have a motion switch which switches on when there is motion and off when there is no motion. Next job will be to make a switch which can switch on and off the storing of pictures on my ftp-server.

Ok thanks. I found out why the scrip gave an error message. At the end of the line with the first if statement a semicolon is missing. So now I will check the idx.

What is Foscam status idx?
En ik krijg een foutmelding met dit script in regel 46