function setCookieFont(c_name,value,expiredays)
{
  var exdate=new Date();
  exdate.setDate(exdate.getDate()+expiredays);
  document.cookie=c_name+ "=" +escape(value)+((expiredays==null) ? "" : ";expires="+exdate.toGMTString())+"; path=/";
}

function getCookieFont(c_name)
{
  if (document.cookie.length>0) {
    c_start=document.cookie.indexOf(c_name + "=");
    if (c_start!=-1) {
      c_start=c_start + c_name.length+1;
      c_end=document.cookie.indexOf(";",c_start);
      if (c_end==-1) c_end=document.cookie.length;
      return unescape(document.cookie.substring(c_start,c_end));
    }
  }
  return "";
}

function setFontSizeImg(value, mode) {
// header comune per tutti, solo canale 72
  chid = '72';
  document.getElementById("font_"+value).src = '/01NET/External_Site/Images_V4/'+chid+'_c' + value + mode +'.png';
};

function setActiveFontSize(value) {
  theStyle = null;
  if (value == "piccolo") theStyle = "0.7em";
  if (value == "normale") theStyle = "0.8em";
  if (value == "grande")  theStyle = "1em";
  if (theStyle) {
    document.getElementsByTagName("body")[0].style.fontSize = theStyle;
    setFontSizeImg('piccolo', '');
    setFontSizeImg('normale', '');
    setFontSizeImg('grande', '');
    setFontSizeImg(value, '_selected');
    setCookieFont('ep4pc_fontsize',value,365);
  }
}

$(document).ready(function () {
  ep4pcfs_fontsize = getCookieFont('ep4pc_fontsize');

  if (ep4pcfs_fontsize!=null && ep4pcfs_fontsize!="") {
    setActiveFontSize(ep4pcfs_fontsize);
  } else {
    // default = normale
    setActiveFontSize('normale');
  }
});