Shader Fade 2 Textures - Need Help

Unity Engine
1

I have this shader I found in the Wiki. It works but

I need to have the ability to fade it out with iTween.FadeTo(gameObject,.2,0);
obviously this doesn’t work because _Color property isn’t being applied in the “Pass” section. Can someone please help me out

Shader "Blend 2 Textures" { 

Properties {
	_Color ("Main Color", Color) = (1,1,1,1)
    _Blend ("Blend", Range (0, 1) ) = 0 
    _MainTex ("Texture 1", 2D) = "" 
    _Texture2 ("Texture 2", 2D) = ""
	
}

SubShader { 
    Pass {
        SetTexture[_MainTex]
        SetTexture[_Texture2] { 
            ConstantColor (1,1,1, [_Blend]) 
            Combine texture Lerp(constant) previous
        }      
    }
} 

}
2

I have no idea what iTween.FadeTo is. Sounds like you need to get rid of _Blend and use the alpha channel of _Color.

3

no blend gives me the ability to cross between two textures, i need that, what i want is the ability to fade out the entire texture( for example when hiding the button), i want to fade it out

4

http://forum.unity3d.com/threads/89924-Blending-between-alpha-blended-sprites

?