/* 
Text Size Change toggle
====================================================================*/
function changeTextSize(){
	if(!document.getElementById) return;
	if(!document.getElementById('textsizeLink')) return;
	
	document.getElementById('textsizeLink').onclick = function(){
		cur = getActiveStyleSheet();
		if(cur != "largeFont"){
			setActiveStyleSheet('largeFont');
		}
		else {
			setActiveStyleSheet('default');
		}
	}
}
addLoadEvent(changeTextSize);

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) {*/
function cookieSetup(){
  var cookie = readCookie("style");
  var title = cookie ? cookie : getPreferredStyleSheet();
  setActiveStyleSheet(title);
}
addLoadEvent(cookieSetup);

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

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


/*
Add Print This Page Functionality
=====================================================================*/
function printThis(){
	if(!document.getElementById) return;
	if(!document.getElementById('printLink')) return;
	var l = document.getElementById('printLink');
	l.onclick = function(){
		window.print();
	}
}
addLoadEvent(printThis);



/* 
Adds functions to onload event
====================================================================*/
function addLoadEvent(func){
	var oldonload = window.onload;
	if (typeof window.onload != 'function'){window.onload = func;}
	else{window.onload = function(){oldonload(); func();}}
}