function showGame() {
		if( document.getElementById ) { 			// this is the way the standards work
			document.getElementById('ads').style.display = 'none';
			document.getElementById('jogo').style.display = 'block';
		} else if( document.all ) {				// this is the way old msie versions work
			document.all['ads'].style.display = 'none';
			document.all['jogo'].style.display = 'block';
		} else if( document.layers ) {				// this is the way nn4 works
			document.layers['ads'].style.display = 'none';
			document.layers['jogo'].style.display = 'block';
		}
}