// taken from http://www.alistapart.com/articles/alternate/

var hiddenSidebarItems = "";

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;
    }
  }
}

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 "luxury";
}

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;
  return "luxury";
}

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 "";
}

function validateInt(iString)
{
    // no leading 0s allowed
    return (("" + parseInt(iString)) == iString);
}
window.onload = function(e) {
  var cookie = readCookie("style");
  if (validateInt(cookie))
  {
    cookie = "luxury";
  }
  var title = cookie ? cookie : getPreferredStyleSheet();
  setActiveStyleSheet(title);
// sidebar settings load
  hiddenSidebarItems = readCookie("hiddenSidebarItems");
  var temp = new Array();
  temp = hiddenSidebarItems.split("_");
  for (i=1; i<temp.length; i++)
  {
    if (document.getElementById('area' + temp[i]))
    {
      document.getElementById('area' + temp[i]).className = 'areaHidden';
      document.getElementById('td' + temp[i]).innerHTML = '<span style="text-align:center">&nbsp;+&nbsp;</span>';
    }
  }
  if (document.getElementById("areaFriendsOnTheWeb"))
  {
  // 20070301 only show friends if area is not hidden
  if (document.getElementById("areaFriendsOnTheWeb").className != "areaHidden")
  {
    renderFriends();
    renderedFriends = true;
  }
  }
  if (document.getElementById("areaFavourites"))
  {
  // 20070502 favourites
  if (document.getElementById("areaFavourites").className != "areaHidden")
  {
    renderFavourites();
    renderedFavourites = true;
  }
  }
}

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

var cookie = readCookie("style");
var title = cookie ? cookie : getPreferredStyleSheet();
setActiveStyleSheet(title);