This is a Video regarding my “Problem” which i have posted here:

https://plus.google.com/u/0/+gerdreuter/posts/P7xvtFYYn5T

First part with Script from above.

Second part Script with jsut this:

if (pos>-1) {

trans=255;

itm. getProperties(). edit(). setInteger(‘i.alpha’,trans). commit() ;

}

Additional info:

by reaching stop-point i chnage the tranparency to 0 of this panel.

and by resuming desktopn i set it to 255.