function readCookie(name)
{
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function createCookie(name,value,days)
{
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function togle(id, callerid, forceOpen)
{
  var obj = document.getElementById(id);
  var caller = document.getElementById(callerid);
  if(obj)
  {
    if(obj.style.display == 'none' || forceOpen)
    {
      obj.style.display = '';
      if(caller) caller.innerHTML = '[-]';
      createCookie('NodeOpen', id, 1);
      createCookie('Node', callerid, 1);
    }
    else
    {
      obj.style.display = 'none';
      if(caller) caller.innerHTML = '[+]';
    }
  }
}

function ukryj()
{
  var nodeOpen = readCookie('NodeOpen');
  var calerid = readCookie('Node');
  //alert(calerid);
  if(calerid)
  {
    var caler = document.getElementById(calerid);
    if(caler) caler.innerHTML = '[-]';
  }
  
  var uls = document.getElementsByTagName('ul');
  for(i=0; i < uls.length; i++)
  {
    if(uls[i].className == 'grupy')
    {
      if(nodeOpen && (uls[i].id.replace(/\s/g, "") == nodeOpen.replace(/\s/g, ""))) continue;
      
      uls[i].style.display = 'none';
    }
  }
}