Cutout version of this Translucent Shader?

I am using the Translucent shader found on this page http://farfarer.com/blog/2012/09/11/translucent-shader-unity3d/
and it works very nicely, though I now need a Cutout version, so I made the changes and there is a cutout but the rest of the quad that is empty darkens eveything behind it as seen in the pic.

Can anyone help in what I need to do to remove that, or is there a shader that will equally light something thin on the front and back of a double sided quad?

 

You probably need to add

addshadow

to the

#pragma surface

line.

 

Try adding

alpha:fade

to #pragma.