Javascript Mini Bibliography

I often annoys me when people don’t make it clear what they’re referencing in an article. Sometimes people don’t give any references at all, and when they do they use links on words that shouldn’t be links (the click here syndrome).

So I wrote this Javascript to help out. It adds a section at the bottom of each of your Wordpress posts containing all the links you referred to in a post:

/* From Prototype */
document.getElementsByClassName = function(className) {
  var children = document.getElementsByTagName('*') || document.all;
  var elements = new Array();

  for (var i = 0; i < children.length; i++) {
    var child = children[i];
    var classNames = child.className.split(' ');
    for (var j = 0; j < classNames.length; j++) {
      if (classNames[j] == className) {
        elements.push(child);
        break;
      }
    }
  }

  return elements
}

function post_links()
{
  var posts = document.getElementsByClassName('storycontent')
  for (i = 0; i < posts.length; i++)
  {
    found_links = false
    for (n = 0; n < posts[i].childNodes.length; n++)
    {
      for (p = 0; p < posts[i].childNodes[n].childNodes.length; p++)
      {
        if (posts[i].childNodes[n].childNodes[p].nodeName == 'A')
        {
          if (!found_links)
          {
            header = document.createElement('H4')
            header.innerHTML = 'Links in this post:'
            posts[i].appendChild(header)
            found_links = true
          }
          link = document.createElement("A");
          link.href = posts[i].childNodes[n].childNodes[p].href
          link.innerHTML = posts[i].childNodes[n].childNodes[p].innerHTML
          posts[i].appendChild(link)
          posts[i].appendChild(document.createElement('BR'))          
        }
      }
    }
  }
}

post_links()