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 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;
}

window.onload = function(e) {
	var cookie = readCookie("style");
	var title = cookie ? cookie : getPreferredStyleSheet();

	if(location.hash=="#cssFontS"){
		title = "small";
	}else if(location.hash=="#cssFontM"){
		title = "medium";
	}else if(location.hash=="#cssFontL"){
		title = "large";
	}
	setActiveStyleSheet(title);
	add_chimg("rollover");
	if(document.getElementById("access-map")!=null){
		mapLoader();
	}
}

window.onunload = function(e) {
  var title = getActiveStyleSheet();
  createCookie("style", title, 0);
}

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


function add_chimg(classn){
	for(i=0; (a = document.getElementsByTagName("img")[i]); i++) {
		if(a.className==classn) {
			new RollOverImage(a);
		}
	}
}

function RollOverImage(img){
	this.img = img;
	this.originalPath = this.img.src;
	this.setMouseOverImage();
}

RollOverImage.prototype.setMouseOverImage = function(){
	var originalPath = this.originalPath;
	this.mouseoverImg = new Image();
	this.mouseoverImg.src = originalPath.replace(".gif","_on.gif");
	this.img.onmouseover = RollOverImage.createHandler(this.img, this.mouseoverImg.src);
	this.img.onmouseout = RollOverImage.createHandler(this.img, this.originalPath);
}

RollOverImage.createHandler = function(img, path){
	return function(){
		img.src = path;
	}
}

function popupWindow(obj){
	window.open(
		obj.href,
		null,
		"width=460,height=400,menubar=no,location=no,status=yes,toolbar=no,scrollbars=yes");
}


function email(account,host){
	mailAddress=account+'@'+host;
	document.write("<a href=\"mailto:"+mailAddress+"\">"+mailAddress+"</a>");
}