local msc_ref = gui.Reference( "Visuals", "World", "Materials" );
local lua_combobox = gui.Combobox( msc_ref, "lua_skyboxppicker", "Skybox picker",


                        "Pink One" );


function SkyBox()
    local skybox_old = client.GetConVar("sv_skyname");
    local skybox_new = (lua_combobox:GetValue());

        if ( skybox_new == 0 ) then
            client.SetConVar("sv_skyname" , "pink1")


        end

end

callbacks.Register("Draw", "SkyBox", SkyBox)
callbacks.Register( "Draw", "LuaGuiTest", OnDraw );