Another Simple Silly Blinds Script

This script changes a window from mostly transparent and blueish to a solid pink pretty texture. Have at it...

// Stacey Novi's Horribly Simple blinds script
 // if you don't totally hate this, send me an IM :)
 string id;
 string owner;
 
 // default is for the window to be mostly transparent
 default
 {
 		state_entry(){
 		 llSetAlpha(.20, ALL_SIDES); 
 		 llSetColor( <0,128,55>,ALL_SIDES);
 		 llSetTexture("2cb471c1-5457-7db9-8776-1f6b9a201388",ALL_SIDES); 
 		}
 		touch_start(integer num_detected)
 				{
 				id = llGetLandOwnerAt( llGetLocalPos());
 				owner = llGetOwner();
 				if(id == owner){ state closed;}
 				}
 }
 
 
 
 state closed
 	{
 		state_entry()
 		 {
 		llSetAlpha(1.0,ALL_SIDES);
 		llSetColor( <255,255,255>, ALL_SIDES);
 		llSetTexture("2cb471c1-5457-7db9-8776-1f6b9a201388",ALL_SIDES);
 	}
 	touch_start(integer num_detected)
 				{
 				id = llGetLandOwnerAt( llGetLocalPos());
 				owner = llGetOwner();
 				if(id == owner){ state default;}
 				}
 }

How does it work though.... is it linked to all windows with the script?.. does it work by clicking on it?

I'm trouble getting this script to work