function zmienColor(co,jaki)
{
co.style.backgroundColor=jaki;
}

function przeskocz(gdzies)
{
parent.location.replace(gdzies);
}

function potwierdz(tresc,cel)
{
if (confirm(tresc))
 {
 parent.location.replace(cel);
 }
}

function kalendar(id) {
	document.getElementById('top_'+id).style.fontWeight = 'bold';
	document.getElementById('bottom_'+id).style.display = 'block';
	
	if(id != '04_07') {
		document.getElementById('top_04_07').style.fontWeight = 'normal';
		document.getElementById('bottom_04_07').style.display = 'none';
	}
	if(id != '05_07') {
		document.getElementById('top_05_07').style.fontWeight = 'normal';
		document.getElementById('bottom_05_07').style.display = 'none';
	}
	if(id != '06_07') {
		document.getElementById('top_06_07').style.fontWeight = 'normal';
		document.getElementById('bottom_06_07').style.display = 'none';
	}

}