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

function getActiveStyleSheet(group) {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title").indexOf(group) == 0 && !a.disabled) 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 size_cookie = readCookie("style_size");
	var contrast_cookie = readCookie("style_contrast");
	
	if (size_cookie)
	{
		setActiveStyleSheet('size',size_cookie); 
	}
	
	if (contrast_cookie)
	{
		setActiveStyleSheet('contrast',contrast_cookie);
	}