function showmenu(x) {
	switch(x) {
		case 1: 
			document.getElementById('home').style.visibility = 'visible';
			document.getElementById('home').style.display = 'block';

			document.getElementById('patients').style.visibility = 'hidden';
			document.getElementById('patients').style.display = 'none';

			document.getElementById('trials').style.visibility = 'hidden';
			document.getElementById('trials').style.display = 'none';

			document.getElementById('team').style.visibility = 'hidden';
			document.getElementById('team').style.display = 'none';
			
			break;
		case 2:
			document.getElementById('home').style.visibility = 'hidden';
			document.getElementById('home').style.display = 'none';

			document.getElementById('patients').style.visibility = 'visible';
			document.getElementById('patients').style.display = 'block';

			document.getElementById('trials').style.visibility = 'hidden';
			document.getElementById('trials').style.display = 'none';

			document.getElementById('team').style.visibility = 'hidden';
			document.getElementById('team').style.display = 'none';
			break;
		case 3:
			document.getElementById('home').style.visibility = 'hidden';
			document.getElementById('home').style.display = 'none';
			
			document.getElementById('patients').style.visibility = 'hidden';
			document.getElementById('patients').style.display = 'none';

			document.getElementById('trials').style.visibility = 'visible';
			document.getElementById('trials').style.display = 'block';

			document.getElementById('team').style.visibility = 'hidden';
			document.getElementById('team').style.display = 'none';

			break;
		case 4:
			document.getElementById('home').style.visibility = 'hidden';
			document.getElementById('home').style.display = 'none';
			
			document.getElementById('patients').style.visibility = 'hidden';
			document.getElementById('patients').style.display = 'none';

			document.getElementById('trials').style.visibility = 'hidden';
			document.getElementById('trials').style.display = 'none';

			document.getElementById('team').style.visibility = 'visible';
			document.getElementById('team').style.display = 'block';
			break;
		default:
			document.getElementById('home').style.visibility = 'hidden';
			document.getElementById('home').style.display = 'none';
			
			document.getElementById('patients').style.visibility = 'hidden';
			document.getElementById('patients').style.display = 'none';

			document.getElementById('trials').style.visibility = 'hidden';
			document.getElementById('trials').style.display = 'none';

			document.getElementById('team').style.visibility = 'hidden';
			document.getElementById('team').style.display = 'none';
			break;
	}
}