// 2channerer's navigator
// © 900-san at usability-thread , 290-san & 315-san at accesskey-thread in webboard  2002. All rights reserved.

document.createElement("header");
document.createElement("footer");
document.createElement("aside");
document.createElement("article");
document.createElement("nav");
document.createElement("section");
document.createElement("mark");
document.createElement("nav");
document.createElement("h");

var keys = new Array();
keys["start"] = "S";
keys["next"] = "N";
keys["prev"] = "P";
keys["contents"] = "C";
keys["index"] = "I";
keys["glossary"] = "G";

function navi()
{
  var links=document.getElementsByTagName("link");
  var navi=document.createElement("ul");
  navi.className="navigation";
  navi.title="navigation";
  var panel=document.getElementById("fields");
  for (var i = 0; i < links.length; i++) {
    var item=navigatorItem(links.item(i));
    if(!item) continue;
    navi.appendChild(item);
  }
  panel.appendChild(navi);
}

function navigatorItem(linkElement)
{
  if(!linkElement.getAttribute("href")) return null;
  if(!linkElement.getAttribute("rel")) return null;
  if(linkElement.getAttribute("rel").toLowerCase().indexOf("stylesheet")>=0) return null;
  var listItem=document.createElement("li");
  var anchor=document.createElement("a");
  if(linkElement.getAttribute("type")) anchor.setAttribute("type", linkElement.getAttribute("type"));
  if(linkElement.getAttribute("charset")) anchor.setAttribute("charset", linkElement.getAttribute("charset"));
  if(linkElement.getAttribute("hreflang")) anchor.setAttribute("hreflang", linkElement.getAttribute("hreflang"));
  if(linkElement.getAttribute("rev")) anchor.setAttribute("rev", linkElement.getAttribute("rev"));
  anchor.setAttribute("rel", linkElement.getAttribute("rel"));
  anchor.setAttribute("href", linkElement.getAttribute("href"));
  var key=getAccessKey(linkElement.getAttribute("rel"));
  if(key) anchor.setAttribute("accessKey", key);
  if(linkElement.getAttribute("title")) anchor.appendChild( document.createTextNode(linkElement.getAttribute("title")));
  else anchor.appendChild(document.createTextNode(linkElement.getAttribute("rel")));
  listItem.appendChild(anchor);
  return listItem;
}

function getAccessKey(relString)
{
  return keys[relString.toLowerCase()];
}

function Initializer()
{
  function Initializer_handleEvent(e)
  {
    navi();
  }
  this.handleEvent=Initializer_handleEvent;
  return this;
}
  if(window.addEventListener) window.addEventListener("load", new Initializer(), true);
  else if(window.attachEvent) window.attachEvent("onload", navi);


//Class Changer

function changeClass(i,c){
  if(document.getElementById){
    document.getElementById(i).className=c;
  }
}