Changing textures on objects

I've been in SL for long enough that I really should have more of a handle on scripting, but I really can't get my head around it. So once again I am here, cap in hand, to ask for some assistance, please . I've searched the forums to no avail.

I'm building an actual house for the first time, with doors and windows. What I'd like to do is not have doors like RL doors but to have a phantom object with a semi-opaque texture, which can be changed to a solid object with a different texture when it's touched.

Could someone help with a script that would do this, please?

Working offline, so I can't see if this compiles.

integer open = FALSE;

integer FACE1 = 0;   // adjust this to the front side of your door
integer FACE2 = 1;  // adjust this to the back side of your door
string OPENTEXTURE = "OpenTexture.tga";      // rename this to your open texture
string CLOSEDTEXTURE = "ClosedTexture.tga";  // rename this to your closed texture

default
{
     state_entry()
    {
    }

     touch_start(integer num_detected)
     {
          open = !open;
          if (open)
          {
               llSetTexture (OPENTEXTURE, FACE1);
               llSetTexture (OPENTEXTURE, FACE2);
               llSetStatus (STATUS_PHANTOM, TRUE);
          }
          else
          {
               llSetTexture (CLOSEDTEXTURE, FACE1);
               llSetTexture (CLOSEDTEXTURE, FACE2);
               llSetStatus (STATUS_PHANTOM, FALSE);
          }
     }
}

Thank you! I'll give it a go!

Once I worked out which face was which, it worked a treat-- thank you very much

You are welcome.