var prefsLoaded = false;
var defaultFontSize = 14;
var currentFontSize = 14;
var currentFontType = 1;
var currentFontSize = defaultFontSize;
function revertStyles()
{
   currentFontSize = defaultFontSize;
   changeFontSize(0);
}
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;
};
window.onload = setUserOptions;
function setUserOptions()
{
   if(!prefsLoaded)
   {
      cookie = readCookie("fontSize");
      currentFontSize = cookie ? cookie : defaultFontSize;
      setFontSize(currentFontSize);
      prefsLoaded = true;
   }
}
window.onunload = saveSettings;
function saveSettings()
{
  createCookie("fontSize", currentFontSize, 365);
}
function changeFontSize(sizeDifference)
{
   currentFontSize = parseInt(currentFontSize) + parseInt(sizeDifference);
   if(currentFontType == 1)
   {
      if(currentFontSize > 26)
         {currentFontSize = 26;}
      else if(currentFontSize < 8)
         {currentFontSize = 8;}
   }else{
      if(currentFontSize > 29)
         {currentFontSize = 29;}
      else if(currentFontSize < 8)
         {currentFontSize = 8;}
   }
   setFontSize(currentFontSize);
   saveSettings();
};
function setFontSize(fontSize)
{
   var stObj = (document.getElementById) ? document.getElementById('articletab') : document.all('articletab');
   if (stObj)
      {stObj.style.fontSize = fontSize + 'px';}
};