function show_n()
{
document.getElementById('ostatni').style.display = 'none';
document.getElementById('nastepny').style.display = '';
return false;
}

function show_o()
{
document.getElementById('ostatni').style.display = '';
document.getElementById('nastepny').style.display = 'none';
return false;
}

var now = false;

function show_player(pid)
{
	if(now)
	{
		document.getElementById('player'+now).style.display = 'none';
	}
	document.getElementById('player'+pid).style.display = '';
	now = pid;
}

function hide_player()
{
	if(now)
	{
		document.getElementById('player'+now).style.display = 'none';
	}
	now = false;
}