function showHide(divID, img, path) {
	obj = document.getElementById(divID);
	if (obj.style.display == "none"){
		obj.style.display = "";
		img.src = path + "img/minus.gif";
		setCookie(divID, 1, '', '');
	} else {
		obj.style.display = "none";
		img.src = path + "img/plus.gif";
		setCookie(divID, 'none', '', '');
	}
}

function setCookie(name, value, expires, path) {
	
	if (expires == '') {
		expires = 'expires=Tue, 28 Dec 2010 00:00:00 GMT';
	}
	
	if (path == '') {
		path = 'path=/';
	}
	
	document.cookie = name + '=' + value + ';' + expires  + ';' + path  + ';';
	
}


function nactiCookie(jmeno) {

  var najdi;

  najdi = jmeno + "=";
  offset = document.cookie.indexOf(najdi);
  if (offset != -1) {
    offset += najdi.length ;
    konec = document.cookie.indexOf(";", offset) ;
    if (konec == -1)
      konec = document.cookie.length;
    return unescape(document.cookie.substring(offset, konec));
  }
  else
    return "";
}