<?xml version="1.0"?>
<!DOCTYPE gsmarkup>

<gsmarkup>
  <objects>

    <panel title="Difficulty level Panel" id="panel">
     <vbox>
      <box title="Choose Difficulty Level:">
	<popUpButton target="#NSOwner" action="changeLevel:" id="popUp">
	  <popUpButtonItem tag="0" title="Level 0 (Trivial)" />
	  <popUpButtonItem tag="1" title="Level 1 (Beginner)" />
	  <popUpButtonItem tag="2" title="Level 2 (Easy)" />
	  <popUpButtonItem tag="3" title="Level 3 (Medium)" />
	  <popUpButtonItem tag="4" title="Level 4 (Advanced)" />
	  <popUpButtonItem tag="5" title="Level 5 (Difficult)" />
	  <popUpButtonItem tag="6" title="Terminate the app" action="terminate:" target="#NSApp" />
	</popUpButton>
      </box>
     </vbox>
    </panel>

  </objects>

  <connectors>
    <outlet source="#NSOwner" target="#popUp" label="popUp" />
    <outlet source="#NSOwner" target="#panel" label="panel" />
  </connectors>
</gsmarkup>