function ozavodu(){
	document.getElementById('submenu-h1').style.display = 'block';
	document.getElementById('submenu-h2').style.display = 'none';
	document.getElementById('submenu-h1').style.visibility = 'visible';
	document.getElementById('submenu-h2').style.visibility = 'hidden';

}

function projekti(){
	document.getElementById('submenu-h1').style.display = 'none';
	document.getElementById('submenu-h2').style.display = 'block';
	document.getElementById('submenu-h1').style.visibility = 'hidden';
	document.getElementById('submenu-h2').style.visibility = 'visible';
}