function e(a)
{
  return document.getElementById(a);
}

function openWindow(jmeno, link, w, h)
{
  window.open(link, jmeno, 'toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=no, copyhistory=no, width='+w+', height='+h).focus();
}

function closePopupAndReloadParent()
{
  window.opener.window.location.reload();
  window.close();
}

function resizeWindow(w, h)
{
  window.resizeTo(w, h);
}

/* cookie */

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 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 eraseCookie(name) 
{
  createCookie(name,"",-1);
}