integer counter;
 
default
{
    state_entry()
    {
        llAllowInventoryDrop(TRUE);
    }
 
    touch_start(integer total_number)
    {
        llSetTexture(llGetInventoryName(INVENTORY_TEXTURE, counter),1);
        counter += 1;
        if (counter >= llGetInventoryNumber(INVENTORY_TEXTURE))
        {
            counter = 0;
        }
    }
}