Hiddden lines on screen script

 From:  MajorGrubert (CARLOSFERREIRAPINTO)
6530.1 
Hello,
Looked every post in this forum but couldnt find a script that turn edges into Hidden lines (dashed lines) and the solid into Transparent.
I believe i've seen this somewhere but can't remember where, also think i've seen a video post by a user with this script.
Can anyone help me find this script, or prove this is just something out of my imagination : )
Thanks.
Carlos