function setFontSize(){
	var czcionka = readCookie("czcionka");
	if(czcionka) {
		$("html").css('font-size', czcionka);
	}
	else {
		document.getElementsByTagName("html")[0].style.fontSize = "62.5%";
	}
}

window.onload = Init;

function Init() {
	var czcionka = readCookie("czcionka");
	//setFontSize();
	ustaw_czcionke();
	
	if(WHReadCookie('cookies_accepted') != 'T') {
        //var message_container = document.createElement('div');
        //message_container.id = 'cookies-message-container';
		document.getElementById('cookies-message-container').style.display = "block";
		//message_container.innerHTML = html_code;
        //document.body.appendChild(message_container);
    }
}

function ustaw_czcionke() {
	fontDefault = document.getElementById("fontDefault");
	fontBigger = document.getElementById("fontBigger");
	fontSmaller = document.getElementById("fontSmaller");
	
	fontDefault.onclick = function() {
		$("html").css('font-size', '65%');
		createCookie("czcionka", $("html").css('font-size'), 365);
		return false;
	}	
	fontBigger.onclick = function() {
		if ( parseInt($("html").css('fontSize')) < 16 ) {
			$("html").css('font-size', parseInt($("html").css('fontSize')) + 2);
		}		
		createCookie("czcionka", $("html").css('font-size'), 365);
		setFontSize();
		return false;
	}	
	
	fontSmaller.onclick = function() {
		if ( parseInt($("html").css('fontSize')) >= 10 ) {
			$("html").css('font-size', parseInt($("html").css('fontSize')) - 2);
		}
		createCookie("czcionka", $("html").css('font-size'), 365);
		setFontSize();
		return false;
	}	
}

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 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 false;
}

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

function WHReadCookie(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 WHCloseCookiesWindow() {
    WHCreateCookie('cookies_accepted', 'T', 365);
    document.getElementById('cookies-message-container').removeChild(document.getElementById('cookies-message'));
}

function hasClass(el, className) {
  if (el.classList)
    return el.classList.contains(className)
  else
    return !!el.className.match(new RegExp('(\\s|^)' + className + '(\\s|$)'))
}

function addClass(el, className) {
  if (el.classList)
    el.classList.add(className)
  else if (!hasClass(el, className)) el.className += " " + className
}