/*

highlight v3

Highlights arbitrary terms.

<http://johannburkard.de/blog/programming/javascript/highlight-javascript-text-higlighting-jquery-plugin.html>

MIT license.

Johann Burkard
<http://johannburkard.de>
<mailto:jb@eaio.com>

Modified by Brightworks (08/01/2012).
*/

jQuery.fn.superscript = function(pat) {
 function innerSuperscript(node, pat) {
  var skip = 0;
  if (node.nodeType == 3) {
   var pos = node.data.toUpperCase().indexOf(pat);
   if (pos >= 0) {
    var supnode = document.createElement('sup');
    var middlebit = node.splitText(pos);
    var endbit = middlebit.splitText(pat.length);
    var middleclone = middlebit.cloneNode(true);
    supnode.appendChild(middleclone);
    middlebit.parentNode.replaceChild(supnode, middlebit);
    skip = 1;
   }
  }
  else if (node.nodeType == 1 && node.childNodes && !/(script|style|sup)/i.test(node.tagName)) {
   for (var i = 0; i < node.childNodes.length; ++i) {
    i += innerSuperscript(node.childNodes[i], pat);
   }
  }
  return skip;
 }
 return this.each(function() {
  innerSuperscript(this, pat.toUpperCase());
 });
};