text: ﻿/*
  
  highlight v5
  
  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>
  
  */
  
  jQuery.fn.highlight = function (pat) {
      function innerHighlight(node, pat) {
          var skip = 0;
          if (node.nodeType == 3) {
              var pos = node.data.toUpperCase().indexOf(pat);
              pos -= (node.data.substr(0, pos).toUpperCase().length - node.data.substr(0, pos).length);
              if (pos >= 0) {
                  var spannode = document.createElement('span');
                  spannode.className = 'highlight';
                  var middlebit = node.splitText(pos);
                  var endbit = middlebit.splitText(pat.length);
                  var middleclone = middlebit.cloneNode(true);
                  spannode.appendChild(middleclone);
                  middlebit.parentNode.replaceChild(spannode, middlebit);
                  skip = 1;
              }
          }
          else if (node.nodeType == 1 && node.childNodes && !/(script|style)/i.test(node.tagName)) {
              for (var i = 0; i < node.childNodes.length; ++i) {
                  i += innerHighlight(node.childNodes[i], pat);
              }
          }
          return skip;
      }
      return this.length && pat && pat.length ? this.each(function () {
          innerHighlight(this, pat.toUpperCase());
      }) : this;
  };
  
  jQuery.fn.removeHighlight = function () {
      return this.find("span.highlight").each(function () {
          this.parentNode.firstChild.nodeName;
          with (this.parentNode) {
              replaceChild(this.firstChild, this);
              normalize();
          }
      }).end();
  };