interface.fxml

<?xml version="1.0" encoding="UTF-8"?>

<?language javascript?>

<?import java.lang.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.media.*?>


<AnchorPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="640.0" minWidth="640.0" prefHeight="640.0" prefWidth="640.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1">
	<children>
		<SplitPane dividerPositions="0.5" focusTraversable="true" layoutX="220.0" layoutY="100.0" orientation="VERTICAL" prefHeight="200.0" prefWidth="363.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
			<items>
	    		<AnchorPane fx:id="mediaPane" minHeight="0.0" minWidth="0.0" prefHeight="107.0" prefWidth="158.0">
					<children>
						<MediaView fitHeight="480.0" fitWidth="640.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0" xmlns:fx="http://javafx.com/fxml">
							<mediaPlayer>
	                    		<MediaPlayer autoPlay="true">
	                        		<media>
	                            		<Media source="http://download.oracle.com/otndocs/products/javafx/oow2010-2.flv" />
	                        		</media>
	                    		</MediaPlayer>
	                		</mediaPlayer>
	                	</MediaView>
					</children>
				</AnchorPane>
	    		<AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="100.0" prefWidth="160.0">
					<children>
						<Button onAction="removeMediaPlayer()" text="Button" />
					</children>
				</AnchorPane>
			</items>
		</SplitPane>
	</children>

	<fx:script>
        function removeMediaPlayer(event) {
            mediaPane.getChildren().clear();
        }
    </fx:script>

</AnchorPane>