int containerHeight = this.container.getItemHeight( rightBorder -x, rightBorder);
int containerHeight = this.container.getItemHeight( rightBorder, rightBorder);
	protected void paintScreen( int x, int y, int rightBorder, Graphics g ) {		if (this.isLayoutVCenter) {			int containerHeight = this.container.getItemHeight( rightBorder -x, rightBorder);			int availableHeight = this.screenHeight - y - containerHeight;			if (availableHeight > 0) {				y += (availableHeight / 2);			}		}		this.container.paint( x, y, x, rightBorder, g );	}