// This script based on Paul Snowden's work described on A List Apart
//  <http://www.alistapart.com/stories/alternate/>
// Certain modifications (setFontSize and related) by Eric Meyer
//  <http://www.meyerweb.com/eric/>
// Adaptations by Fred Maney
//  <http://www.maney.org/fred/>

function setActiveStyleSheet(title) {
   var i, a, main;
   if (title) {
      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;
}

function eraseCookie(name) {
   createCookie(name,'',-1);
}

function setFontSize(fontVal) {
   var fontSet = document.getElementById('fontSet');
   var docBase = new Array(); docBase = document.getElementsByTagName('body');
   if (!fontVal) {
      fontVal = document.getElementById('fontSet').value;
   }
   var docSize = fontVal+'px';
   createCookie('maneyOrg-baseTextSize', fontVal, 365);
   docBase[0].style.fontSize = docSize;
   if (fontSet) {
      fontSet.value = fontVal;
   }
}

window.onload = function(e) {
   var cookie = readCookie('maneyOrg-themeName');
   var title = cookie ? cookie : getPreferredStyleSheet();
   setActiveStyleSheet(title);
   var cookie2 = readCookie('maneyOrg-baseTextSize');
   if (cookie2) {
      setFontSize(cookie2);
   }
}

window.onunload = function(e) {
   var title = getActiveStyleSheet();
   createCookie('maneyOrg-themeName', title, 365);
}

//    var cookie = readCookie('maneyOrg-themeName');
//    var title = cookie ? cookie : getPreferredStyleSheet();
//    setActiveStyleSheet(title);
//    var cookie2 = readCookie('maneyOrg-baseTextSize');
//    if (cookie2) {setFontSize(cookie2);}