window.onload = init;

function init() {
  mangleEmailAuto();
}

function mangleEmailAuto() {
  if(!document.getElementsByTagName) return; //object detection
  
  //find out where we need to make replacements
  var mangleLocations = document.getElementsByTagName("span");
  var whichClass = "mangle-email"; //this class tells us where to add links
  var whichClassStrike = "mangle-email-strike"; //this class is struck through
  
  //e-mail address to mangle
  var part1 = '<a href=\"mai';
  var part2 = 'lto:';
  var part3 = 'scott';
  var part4 = '@';
  var part5 = 'scottseverance.us';
  var part6 = '\">';
  var part7 = '</a>';
  
  //loop through all <span>s
  for(var i = 0; i < mangleLocations.length; i++) {
    
    //find struck text
    if(mangleLocations[i].className == whichClassStrike) {
      mangleLocations[i].className = whichClass;
      mangleLocations[i].title = "";
    }
    
    //add the link
    if(mangleLocations[i].className == whichClass) {
      var mailtoText = mangleLocations[i].innerHTML;
      mangleLocations[i].innerHTML = part1 + part2 + part3 + part4 + part5 + part6 + mailtoText + part7;
    }
  }
}

blogOnSrc = "images/blog_tab_on.png";
blogOffSrc = "images/blog_tab_2.png";
ministryOnSrc = "images/ministry_tab_on.png";
ministryOffSrc = "images/ministry_tab_2.png";
musicOnSrc = "images/music_tab_on.png";
musicOffSrc = "images/music_tab_2.png";
computingOnSrc = "images/computing_tab_on.png";
computingOffSrc = "images/computing_tab_2.png";
galleryOnSrc = "images/gallery_tab_on.png";
galleryOffSrc = "images/gallery_tab_2.png";

function preloadImg() {
  blogImg = new Image;
  ministryImg = new Image;
  musicImg = new Image;
  computingImg = new Image;
  galleryImg = new Image;
  blogImg.src = blogOnSrc;
  ministryImg.src = ministryOnSrc;
  musicImg.src = musicOnSrc;
  computingImg.src = computingOnSrc;
  galleryImg.src = galleryOnSrc;
}
function imgOn(imgName) {
  if(imgName == "blog") {
    document.blog.src = blogOnSrc;
  }
  if(imgName == "ministry") {
    document.ministry.src = ministryOnSrc;
  }
  else if(imgName == "music") {
    document.music.src = musicOnSrc;
  }
  else if(imgName == "computing") {
    document.computing.src = computingOnSrc;
  }
  else if(imgName == "gallery") {
    document.gallery.src = galleryOnSrc;
  }
  return true;
}
function imgOff(imgName) {
  if(imgName == "blog") {
    document.blog.src = blogOffSrc;
  }
  if(imgName == "ministry") {
    document.ministry.src = ministryOffSrc;
  }
  else if(imgName == "music") {
    document.music.src = musicOffSrc;
  }
  else if(imgName == "computing") {
    document.computing.src = computingOffSrc;
  }
  else if(imgName == "gallery") {
    document.gallery.src = galleryOffSrc;
  }
  return true;
}

function mangleEmail(linkText) {
  var part1 = '<A HREF=mai';
  var part2 = 'lto:';
  var part3 = 'scott.severance';
  var part4 = '@';
  var part5 = 'gmail.com';
  var part6 = '>';
  var part7 = '</A>';
  document.write(part1 + part2 + part3 + part4 + part5 + part6 + linkText + part7);
}