Captur the flag END GAME GUI

I have create a capture the flag Gui for my CF Game

this is a section on CF game.cs:

function TheFlagWasCapped(%teamscored)
{
if (%teamscored $="RedScores")
	{
		$RedScore++;
		if($RedScore >= $MaxScore)
			{
				MessageAll("","Team ROSSO vince!!.");
				ResetBots();
				ResetFlags();
				ResetScores();
				cycleGame();
			}
			else
			{
				MessageAll("","ROSSO: " @ $RedScore @" BLU: " @$BlueScore);
			}
	}
if (%teamscored $="BlueScores")
	{
		$BlueScore++;
		if($BLueScore >= $MaxScore)
			{
				MessageAll("","Team BLU vince!!.");
				ResetBots();
				ResetFlags();
				ResetScores();
				cycleGame();
			}
			else
						{
				MessageAll("","ROSSO: " @ $RedScore @" BLU: " @$BlueScore);
			}

	}
}

I woul called a my "CaptureFalgGui" when a team WIN....
and report a win team...

cycleGame(); called this in script...And i suppos a called a Gui from here...
But not function..
I use this:

Canvas.setContent(EndGameCaptureFalgGui);

Any idea?