function setOpacity(elName,opacity) {
  opacity = (opacity == 100)?99:opacity;
  el = document.getElementById(elName);
  // IE
  el.style.filter = "alpha(opacity:"+opacity+")";
  // Safari < 1.2, Konqueror
  el.style.KHTMLOpacity = opacity/100;
  // Old Mozilla
  el.style.MozOpacity = opacity/100;
  // Safari >= 1.2, Firefox and Mozilla, CSS3
  el.style.opacity = opacity/100
}

function hidestuff(boxid){
   document.getElementById(boxid).style.visibility="hidden";
}
function showstuff(boxid){
   document.getElementById(boxid).style.visibility="visible";
}

function toggle(id, merre) {
  var e = document.getElementById(id)
  if (!merre) {
    e.style.display = e.style.display == "none" ? "" : "none";
  } else {
    if (merre=='open') {
      e.style.display = "";
    } else {
      e.style.display = "none";
    }
  }
}

// Fades an element
// elName - id of the element
// start - time in ms when the fading should start
// steps - number of fading steps
// time - the length of the fade in ms
function fader(elName,start,steps,time) {
  setOpacity(elName,100); // To prevent flicker in Firefox
                          // The first time the opacity is set
                          // the element flickers in Firefox
  fadeStep = 100/steps;
  timeStep = time/steps;
  opacity = 100;
  time = start + 100;
  while (opacity >=0) {
    window.setTimeout("setOpacity('"+elName+"',"+opacity+")",time);
    opacity -= fadeStep;
    time += timeStep;
  }
  window.setTimeout("hidestuff('"+elName+"')",time);
}

function areyousure() {
  if (confirm("Biztos vagy benne?")) {
    return true;
  } else {
    return false;
  }
}

function setCookie(name, value, expires, path, domain, secure) {
  var curCookie = name + "=" + escape(value) +
      ((expires) ? "; expires=" + expires.toGMTString() : "") +
      ((path) ? "; path=" + path : "") +
      ((domain) ? "; domain=" + domain : "") +
      ((secure) ? "; secure" : "");
  document.cookie = curCookie;
/*  if (getCookie(name)!=value) {
    curCookie = name + "=" + escape(value) +
      ((path) ? "; path=" + path : "; path=/") +
      ((domain) ? "; domain=" + domain : "; domain=" + document.domain) +
      ((secure) ? "; secure" : "");
    document.cookie = curCookie;
  }*/
}

function getCookie(name) {
  var dc = document.cookie;
  var prefix = name + "=";
  var begin = dc.indexOf("; " + prefix);
  if (begin == -1) {
    begin = dc.indexOf(prefix);
    if (begin != 0) return null;
  } else
    begin += 2;
  var end = document.cookie.indexOf(";", begin);
  if (end == -1)
    end = dc.length;
  return unescape(dc.substring(begin + prefix.length, end));
}

function fixDate(date) {
  var base = new Date(0);
  var skew = base.getTime();
  if (skew > 0)
    date.setTime(date.getTime() - skew);
}

var now = new Date();
// fix the bug in Navigator 2.0, Macintosh
fixDate(now);

function saveBox(boxname) {
  now.setTime(now.getTime() + 365 * 24 * 60 * 60 * 1000);
  setCookie(boxname, document.getElementById(boxname).style.display?document.getElementById(boxname).style.display:'0', now);
}
function initBox(boxname) {
  var disp = getCookie(boxname);
  if (disp) { 
    document.getElementById(boxname).style.display=disp;
  } else {
    document.getElementById(boxname).style.display='';
  }
}