local gui = {}

function createShoppingWindow()
    outputChatBox("test")
    local sWidth, sHeight =  guiGetScreenSize()

    local Width, Height =  320, 550
    local X = (sWidth/2) - (Width/2)
    local Y = (sHeight/2) - (Height/2)

    gui["_root"] = guiCreateWindow(X, Y, Width, Height, "24/7 Shop", false)
    gui["grid"] = guiCreateGridList(1,1, 318, 500, true, gui["_root"])
    gui["close"] = guiCreateButton(80, 505, 160, 40, "Schliessen", true, gui["_root"])

    guiGridListAddColumn(gui["grid"], "Artikel", 0.5)
    guiGridListAddColumn(gui["grid"], "Preis ($)", 0.5)

    showCursor(true)
    guiSetVisible(gui["_root"], true)
end

addEvent("onCall", true)
addEventHandler("onCall", getRootElement(), createShoppingWindow)

function btnClose(btn, state)
    if (btn == "left") and (state == "up") then
        guiSetVisible(gui["_root"], false)
        showCursor(false)
    end
end

addEventHandler("onClientGUIClick", gui["close"], btnClose, false))