function collapse(aktualis, darab) {
  for (i=1;i<=darab;i++) {
    document.getElementById(i).style.display = "none";
    document.getElementById("a" + i).style.fontWeight = "normal";
  }
  document.getElementById(aktualis).style.display = "block";
  document.getElementById("a" + aktualis).style.fontWeight = "bold";
}

function show_select (id)
{
	verified_object = document.getElementById('select_'+id);
	szulo_ertek = verified_object.value;
	if (verified_object.value !=0)
	{
		for (i = 1; i < verified_object.length; i++)
		{
			id = verified_object.options[i].value;
			hide_object = document.getElementById('select_'+id);
			document.getElementById(id).style.display = 'none';
			hide_object.style.display = 'none';
			hide_object.value = 0;
		}
		show_object = document.getElementById('select_'+szulo_ertek);
		document.getElementById(szulo_ertek).style.display = 'block';
		document.getElementById('select_'+szulo_ertek).style.display = 'block';
		show_object.style.display = 'block';
	}
		else
	{
		
		for (i = 1; i < verified_object.length; i++)
		{
			id = verified_object.options[i].value;
			hide_object = document.getElementById('select_'+id);
			document.getElementById(id).style.display = 'none';
			hide_object.style.display = 'none';
			hide_object.value = 0;
		}
	}
}