touchstart texturechanger need help

im working on a house and i want to make a system to change the wall textures as i want, i have 3 textures really to use but i think if i can just get this thing to work with only 2 textures i can get the last texture in the script. anywho here it is,,,, i have made the scripts below and need them to allow only the owner to touch it, i have tried if (llDetectedKey(0) != llGetOwner()) but it wont work with the way i have the script so any help would be great.

//Touch Script goes in Master Prim
key owner;
integer on;
default
{
    state_entry()
    {
       llPassTouches(TRUE);
    }

    touch_start(integer num_detected)
    {
        if(on)
        {
            on = FALSE;
            llMessageLinked(LINK_SET, on, "","");
            
        }
        else
        {
            on = TRUE;
            llMessageLinked(LINK_SET, on, "","");
            
        }    
    } 
}

And

//script in linked set to change texture when touch script tells it to
default
{
    link_message(integer sender, integer num, string message, key id)
    {
        if(num)
        {
              llSetTexture("IMAGEKEY", ALL_SIDES);
        }
        else
        {
            llSetTexture("IMAGEKEY", ALL_SIDES);
        }
    }
}

thanks

Try this:

//Touch Script goes in Master Prim
 key owner;
 integer on;
 default
 {
     state_entry()
     {
         llPassTouches(TRUE);
     }
 
     touch_start(integer num_detected)
     {
         if(llDetectedKey(0) == llGetOwner())
         {
             if(on)
             {
                 on = FALSE;
                 llMessageLinked(LINK_SET, on, "","");
             }
             else
             {
                 on = TRUE;
                 llMessageLinked(LINK_SET, on, "","");
             }
         }
     }
 }

yep, only thing i would add is that you dont need the key owner; defined at top


EDIT

try this for second part also along with the other posted

//script in linked set to change texture when touch script tells it to
integer switch;
default
{
    link_message(integer sender, integer num, string message, key id)
    {
        if((message == "on")&(switch))
        {
              llSetTexture("IMAGEKEY", ALL_SIDES);
              !switch;
        }
        else if((message == "on")&(!switch))
        {
            llSetTexture("IMAGEKEY", ALL_SIDES);
            switch;
        }
    }
}

Thank you both, for the first script i cant believe it was that simple,,, and for the second script wow i never would have thought of that.... going to log in now and play with them



edit,,, i put the second script in with the first and it did not work.... changed the second script back to the way it was and it worked fine........