Get Inventory in a linked prim?

I am trying to make a script that will use a menu to change textures of both parent & child prims an need to know how to get the inventory of the linked prim for the textures inside it to use on those linked prims........
But when I change the child prim textures I want them to change only an vise versa!
Kinda like making say a armband with 20 gems & the band
band would be in one menu & gems on another.

I think its better use just the texture UUID and not the texture inside the object and use this:
(from the wiki)

// Call this function instead of llSetLinkTexture in your main script.
setLinkTexture(list linkNums, string texture, integer face) {
    integer i;
    for (i = 0; i<llGetListLength(linkNums); i++)
        llSetLinkTexture(llList2Integer(linkNums, i), texture, face);
}

and then this on every linked prim

//Then you would call the function like this:
list linkNums = [1, 3, 4];
setLinkTexture(linkNums, texture, face);

also you can check this functions:
http://www.lslwiki.net/lslwiki/wakka.php?wakka=TextSearch&phrase=llSetLinkTexture
http://www.lslwiki.net/lslwiki/wakka.php?wakka=llSetLinkPrimitiveParams

started that as well, but the way I want this to work is menu comes up I choose options Gems an it shows me a list of textures I can use on them an visa versa on the armband !?!