function gallery(active, inactiveOne, inactiveTwo) {
  document.getElementById(active).className="galleryActive";
  document.getElementById(inactiveOne).className="galleryInactive";
  document.getElementById(inactiveTwo).className="galleryInactive";
  var pic="http://nickpyett.com/woodfordfoundation/wp-content/themes/woodfordfoundation/" + active + ".jpg";
  document.getElementById("galleryPic").src=pic;
  var link="projects/" + active + "/";
  document.getElementById("galleryLink").href=link;
  }
   
   
function tan() {
  var spanActive = document.getElementById("tan");
  spanActive.className="galleryActive";
  var malSpan = document.getElementById("mal");
  malSpan.className="galleryInactive";
  var ugaSpan = document.getElementById("uga");
  ugaSpan.className="galleryInactive";
  var galleryPic = document.getElementById("galleryPic");
  galleryPic.src="http://nickpyett.com/woodfordfoundation/wp-content/themes/woodfordfoundation/tanzania.jpg";
  var link = document.getElementById("galleryLink");
  link.href="projects/tanzania/";
  }

function mal() {
  var spanActive = document.getElementById("mal");
  spanActive.className="galleryActive";
  var tanSpan = document.getElementById("tan");
  tanSpan.className="galleryInactive";
  var ugaSpan = document.getElementById("uga");
  ugaSpan.className="galleryInactive";
  var galleryPic = document.getElementById("galleryPic");
  galleryPic.src="http://nickpyett.com/woodfordfoundation/wp-content/themes/woodfordfoundation/malawi.jpg";
  var link = document.getElementById("galleryLink");
  link.href="projects/malawi/";
  }
  
function uga() {
  var spanActive = document.getElementById("uga");
  spanActive.className="galleryActive";
  var malSpan = document.getElementById("mal");
  malSpan.className="galleryInactive";
  var tanSpan = document.getElementById("tan");
  tanSpan.className="galleryInactive";
  var galleryPic = document.getElementById("galleryPic");
  galleryPic.src="http://nickpyett.com/woodfordfoundation/wp-content/themes/woodfordfoundation/uganda.jpg";
  var link = document.getElementById("galleryLink");
  link.href="projects/uganda/";
  }




  
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);