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);


/*following is for the SWIFT Login/ Launch/ Sample pages and should really be in its own file - oh well!*/

// SWIFT Window Opener

function openSWIFT()
{
  var f="status=no,scrollbars=yes,resizable=yes";
  var w=(screen.availWidth-50);
  var h=(screen.availHeight-50);
  var settings='width='+w+',height='+h+',left=5,top=5,'+f;
  var centWin=null;
  centWin=window.open('http://199.185.13.101/htm/login','SWIFT',settings);
  if(centWin!=null){
    centWin.focus();
  }
}

function viewSample()
{
  var f="status=no,scrollbars=yes,resizable=yes";
  var w=(screen.availWidth-50);
  var h=(screen.availHeight-50);
  var settings='width='+w+',height='+h+',left=5,top=5,'+f;
  var centWin=null;
  centWin=window.open('/tutoring/SampleLessons/SampleEZLesson1.htm','SWIFT',settings);
  if(centWin!=null){
    centWin.focus();
  }
}

function PrintPage() { //in header of each policy page
  if (parent.text) { //doc is in a fremset
    parent.text.focus();
    parent.text.print();
  }
  else { // doc is in a simple window
    this.print();
  }
}