function showSubnav(act){
	//alert("alku");
	/*
	switch(act){
		case 1: 
			document.getElementById('hovernavholder').style.visibility = 'visible';
			document.getElementById('mousefield').style.visibility = 'visible';
		break;
		case 0:
			document.getElementById('hovernavholder').style.visibility = 'hidden';
			document.getElementById('mousefield').style.visibility = 'hidden';
		break;
	}
	*/
	//alert("loppu");
}