How to update a materials' shader properties using JavaScript

I'm wanting to dynamicaly update the following properties (_Blend, _MainTex & _Texture2), as a gameObject rotates around the y axis. I'm new to Unity and wondering if its even possible from javascript?

Shader "Blend 2 Textures" { 
  Properties {
    _Blend ("Blend", Range (0, 1) ) = 0.5 
    _MainTex ("Texture 1", 2D) = "" 
    _Texture2 ("Texture 2", 2D) = ""
  }

  SubShader {
    Pass {
      SetTexture[_MainTex]
      SetTexture[_Texture2] { 
        ConstantColor (0,0,0, [_Blend]) 
        Combine texture Lerp(constant) previous
      }
    }
  }
}

_Blend: http://unity3d.com/support/documentation/ScriptReference/Material.SetFloat.html

_MainTex: http://unity3d.com/support/documentation/ScriptReference/Material-mainTexture.html

_Texture2: http://unity3d.com/support/documentation/ScriptReference/Material.SetTexture.html

Try this plugin. 3-4 simple steps to use. You can update or load shader property on runtime.