add a flag after button pressed

[callimuc]

Hey guys, I´m trying to make a GUI button which will add a flag to a player, after its pressed. The button is no problem, but the part of adding a button wont work.
This is how far I got:

PHP Code:

//#CLIENTSIDE
function onCreated() {
new GuiButtonCtrl(FShop_Purchase) {
//Here is all the GUI stuff
}
function FShop_Purchase.onAction() {
clientr.test+=1;
} 


I checked my flags but I couldn´t find anything.