function setColorScheme(CSStitle,reloadpage) {
  var newcss = CSStitle + ".css";
  document.getElementById('color_scheme').href = newcss;
  document.getElementById('color_scheme').name = CSStitle;
  if(reloadpage == 'change'){
  	 window.location.hash="site_tools";
  }
}

function getColorScheme() {
  
 if(document.getElementById('color_scheme').href != ""){ 
 	return document.getElementById('color_scheme').name;
 }
 return null;
}

function setActiveStyleSheet(CSStitle) {

  newcss = CSStitle + ".css";
  document.getElementById('altcss').href = newcss;
  document.getElementById('altcss').name = CSStitle;
      
}

function getActiveStyleSheet() {
  
 if(document.getElementById('altcss').href != ""){ 
 	return document.getElementById('altcss').name;
 }
 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("citaStyleJS");
  var CSStitle = cookie ? cookie : "small";
  setActiveStyleSheet(CSStitle);
  
  var colorSchemeCookie = readCookie("colorScheme");
  var colorScheme = colorSchemeCookie ? colorSchemeCookie : "global";
  setColorScheme(colorScheme); 
}

window.onunload = function(e) {
  var CSStitle = getActiveStyleSheet();
  createCookie("citaStyleJS", CSStitle, 365);
  
  var colorScheme = getColorScheme();
  createCookie("colorScheme", colorScheme, 365);
}

var cookie = readCookie("citaStyleJS");
var CSStitle = cookie ? cookie : "small";
setActiveStyleSheet(CSStitle);

var colorSchemeCookie = readCookie("colorScheme");
var colorScheme = colorSchemeCookie ? colorSchemeCookie : "global";
setColorScheme(colorScheme);