setInterval ( "schimba()", 5000 );

var cine = 1;

function schimba()
{
	
	if(cine == 0)
	{
		document.getElementById('val1').style.display='block';
		document.getElementById('val2').style.display='none';
		cine = 1;
	} else {
		document.getElementById('val2').style.display='block';
		document.getElementById('val1').style.display='none';
		cine = 0;
	}
	
}