function changeTextSize(size){
  var cookie = readCookie("style");
  var title = cookie ? cookie : getPreferredStyleSheet();

         

    switch (size) {
        case 'text-1': setActiveStyleSheet('text-1'); jQuery("#a-0").addClass("active"); break;
        case 'text-2': setActiveStyleSheet('text-2'); jQuery("#a-1").addClass("active"); break;
        case 'text-3': setActiveStyleSheet('text-3'); jQuery("#a-2").addClass("active"); break;
        case 'text-4': setActiveStyleSheet('text-4'); jQuery("#a-3").addClass("active"); break;
    } 
}

function setActiveStyleSheet(title) {
    var i, a, main;
    createCookie("style", title, 365);
    for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
        if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
            a.disabled = true;
            //alert(a.getAttribute("title"));
            if(a.getAttribute("title") == title || a.getAttribute("title") == 'domyslny'){
            //alert(a.getAttribute("title"));
            a.disabled = false;
            } 
        }
    }

        jQuery("#a-0").removeAttr("class");
        jQuery("#a-1").removeAttr("class");
        jQuery("#a-2").removeAttr("class");
        jQuery("#a-3").removeAttr("class");
        
        //alert(title); 
        
    switch (title) {
        case 'text-1': jQuery("#a-0").addClass("active"); break;
        case 'text-2': jQuery("#a-1").addClass("active"); break;
        case 'text-3': jQuery("#a-2").addClass("active"); break;
        case 'text-4': jQuery("#a-3").addClass("active"); break;
    }     
    //alert(title);
    
}


function getActiveStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled){
        alert(a.getAttribute("title"));
        return a.getAttribute("title");
    } 
  }
  return null;
}

function getPreferredStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1
       && a.getAttribute("rel").indexOf("alt") == -1
       && a.getAttribute("title")
       ) return a.getAttribute("title");
  }
  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 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;
}
var cookie = readCookie("style");
var title = cookie ? cookie : getPreferredStyleSheet();

//alert(title);

if(title == null){
setActiveStyleSheet('text-1');
}else{
setActiveStyleSheet(title);
}

/*
window.onload = function(e) {
  var cookie = readCookie("style");
  var title = cookie ? cookie : getPreferredStyleSheet();
  setActiveStyleSheet(title);
}

window.onunload = function(e) {
  var title = getActiveStyleSheet();
  createCookie("style", title, 365);
}
*/