How to combine Shaders?

Hi!
I'm trying to combine the Transparent/Diffuse shader with the Reflective/VertexLit shader. To do a simple glass that has reflection.

Is there any way to do that?

TXS!

 

Here's a window shader:

http://www.unifycommunity.com/wiki/index.php?title=WindowShader

 

Thanks Daniel!
This shader, solved perfectly my problem!

[]s Chips

 

hey Daniel that was pretty sweet.however a couple of questions.
1)this particular way requires that u name passes.so how would u handle the fallback mechanism out here?Isn't there a way so that u can simply call a shader by its name(that shader could have multiple subshaders) and then use watever the output of that shader with my current shader.That way the called shader will take care of the fallback mechanism by itself.
2)also i tried to follow wat u suggested and my unity keeps on crashing.here is wat i'm doin.

create a new shader and paste the following in it

Shader "TestShader2"{
Properties{
_Color ("Main Color", Color) = (1,1,0,0)
_SpecColor("Specular Color", Color) = (0,1,0,1)
_Emission("Emmisive Color",Color) = (1,0.5,0.5,1)
_Shininess("Shininess",Range(0.01,1)) = 0.5
_MainTex("Base (RGB)",2D) = "white" {}
}
SubShader{
UsePass "ts1"
Pass{
Name "ts2"
Blend SrcColor DstColor
Material{
Diffuse[_Color]
Ambient[_Color]
Shininess [_Shininess]
Specular [_SpecColor]
Emission [_Emission]
}
Lighting On
SetTexture [_MainTex]{
constantColor[_Color]
Combine texture * primary
}
}
}
}

where ts1 is a named pass in another shader

Shader "TestShader"{
Properties{
_Color ("Main Color", Color) = (1,1,1,0)
_SpecColor("Specular Color", Color) = (1,1,1,1)
_Emission("Emmisive Color",Color) = (1,1,1,1)
_Shininess("Shininess",Range(0.01,1)) = 0.7
_MainTex("Base (RGB)",2D) = "white" {}
}
SubShader{
Pass{
Name "ts1"
Material{
Diffuse[_Color]
Ambient[_Color]
Shininess [_Shininess]
Specular [_SpecColor]
Emission [_Emission]
}
Lighting On
SeperateSpecular On
SetTexture [_MainTex]{
constantColor[_Color]
Combine texture * primary
}
}
}
}
I'm using TextMate for editing all my code
Both these shaders are in the same folder.Any ideas on this plz?
Thx