function swap(x){
	var str=x.src;
	if (str.indexOf('_h.gif')==-1){
		str=str.replace('.gif','_h.gif');
	} else {
		str=str.replace('_h.gif','.gif');
	}
	x.src=str;
}

function rolloverOff(){
	var allHrefs=document.getElementById('subNavigation').getElementsByTagName('a');
	for(i=0;i<allHrefs.length;i++){
		allHrefs[i].className=''
	}
}

function rolloverOn(x){
	rolloverOff();
	document.getElementById(x).className='current'
}

function setOpacity(opacity,id){var object=document.getElementById(id).style;object.opacity=(opacity/100);object.MozOpacity=(opacity/100);object.KhtmlOpacity=(opacity/100);object.filter="alpha(opacity="+opacity+")";}
function fadeOut(y){t=0;for(m=100;m>=0;m--){setTimeout("setOpacity('"+m+"','"+y.id+"')",(t*5));t++}}

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();
  setActiveStyleSheet(title);
}

window.onunload = function(e) {
  var title = getActiveStyleSheet();
  createCookie("style", title, 365);
}

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

function increaseText() {
	if (getActiveStyleSheet()==null) {
	setActiveStyleSheet('lrg');
	return false;
	}
	if (getActiveStyleSheet()=='lrg') {
	setActiveStyleSheet('lrg_lrg');
	return false;
	}
}

function decreaseText() {
	if (getActiveStyleSheet()=='lrg_lrg') {
	setActiveStyleSheet('lrg');
	return false;
	}
	if (getActiveStyleSheet()=='lrg') {
	setActiveStyleSheet('');
	return false;
	}
}