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

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) 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;
}

function loadStyles()
{
  var cookie = readCookie("style");
  var title = cookie ? cookie : getPreferredStyleSheet();
  setActiveStyleSheet(title);
}

function saveCookie ()
{
  var title = getActiveStyleSheet();
  createCookie("style", title, 365);
}

function decorateSelected()
{
	var title = getActiveStyleSheet();
	var id=-1;
	var ids = new Array(); 
	ids[0]='f-s'
	ids[1]='f-m'
	ids[2]='f-l'
	ids[3]='f-xl'
	if(title=="font-small") id=0;
	else if(title=="font-medium") id=1;
	else if(title=="font-large") id=2;
	else if(title=="font-xlarge") id=3;
	for(var i=0; i<4; i++)
	{
		if(i==id)
			document.getElementById(ids[i]).style.textDecoration="underline";
		else
			document.getElementById(ids[i]).style.textDecoration="none";
	}
	return true;
}
//var cookie = readCookie("style");
//var title = cookie ? cookie : getPreferredStyleSheet();
//setActiveStyleSheet(title);