Inventory [closed]

The scipt is suppose to take 1 inventory space if it finds something in the inventory, I have a wooden sword in the inventory but for some reason it does nothing, output shows not errors.

function added(plr)
    repeat wait() until plr.Character;
    local inventory = plr.Backpack;
    x = script.Parent.Frame;
    y = "http://www.roblox.com/asset/?id=";
    used = {
        x.Slot1.IsInUse;
        x.Slot2.IsInUse;
        x.Slot3.IsInUse;
        x.Slot4.IsInUse;
        x.Slot5.IsInUse;
        x.Slot6.IsInUse;
        x.Slot7.IsInUse;
        x.Slot8.IsInUse;
        x.Slot9.IsInUse;
        x.Slot10.IsInUse;
        x.Slot11.IsInUse;
        x.Slot12.IsInUse;
        x.Slot13.IsInUse;
        x.Slot14.IsInUse;
        x.Slot15.IsInUse;
        x.Slot16.IsInUse;
        x.Slot17.IsInUse;
        x.Slot18.IsInUse;
        x.Slot19.IsInUse;
        x.Slot20.IsInUse;
        x.Slot21.IsInUse;
        x.Slot22.IsInUse;
        x.Slot23.IsInUse;
        x.Slot24.IsInUse;
        x.Slot25.IsInUse;
    }
    images = {
        y..129874048;
        y..129874624;
        y..129874448;
        y..137774700;
        y..137804756;
    }
    function InventorySpaces()
        for i, v in pairs(used) do
            for k, j in pairs(inventory:GetChildren()) do
                if v.Value == false and v.Parent.Image == "" then
                    v.Value = true;
                    if j.Name == "Wooden Sword" then
                        v.Parent.Image = images[1];
                    elseif j.Name == "Iron Sword" then
                        v.Parent.Image = images[2];
                    elseif j.Name == "Long Iron Sword" then
                        v.Parent.Image = images[3];
                    elseif j.Name == "Great Sword" then
                        v.Parent.Image = images[4];
                    elseif j.Name == "Long Great Sword" then
                        v.Parent.Image = images[5];
                    end;
                    print("Slot is now in use;");
                    break;
                else
                    print("Slot is already in use");
                end;
            end;
            break;
        end;
    end;
    plr:WaitForChild("Backpack").ChildAdded:connect(InventorySpaces);
end;

game.Players.PlayerAdded:connect(added);