function doHighlight(bodyText, searchTerm) 
{
  var highlightStartTag = '<span style="color: #000; background-color: #ff8">';
  var highlightEndTag = '</span>';
  var newText = "";
  var i = -1;
  var lcSearchTerm = searchTerm.toLowerCase();
  var lcBodyText = bodyText.toLowerCase();
    
  while (bodyText.length > 0) {
    i = lcBodyText.indexOf(lcSearchTerm, i+1);
    if (i < 0) {
      newText += bodyText;
      bodyText = "";
    } else {
      // skip anything inside an HTML tag
      if (bodyText.lastIndexOf(">", i) >= bodyText.lastIndexOf("<", i)) {
        // skip anything inside a <script> block
        if (lcBodyText.lastIndexOf("/script>", i) >= lcBodyText.lastIndexOf("<script", i)) {
          newText += bodyText.substring(0, i) + highlightStartTag + bodyText.substr(i, searchTerm.length) + highlightEndTag;
          bodyText = bodyText.substr(i + searchTerm.length);
          lcBodyText = bodyText.toLowerCase();
          i = -1;
        }
      }
    }
  }
  
  return newText;
}
function highlightSearchTerms(searchText, treatAsPhrase)
{
  if (treatAsPhrase) {
    searchArray = [searchText];
  } else {
    searchArray = searchText.split(" ");
  }
  
  if (!document.body || typeof(document.body.innerHTML) == "undefined") {
    return false;
  }
  
  var bodyText = document.body.innerHTML;
  for (var i = 0; i < searchArray.length; i++) {
    bodyText = doHighlight(bodyText, searchArray[i]);
  }
  
  document.body.innerHTML = bodyText;
  return true;
}
function highlightQuerySearchTerms(reference)
{
  if (!reference) {
    return false;
  }else{
   var ref = reference.toString();
  }
  var queryPrefix = "q=";
  var startPos = ref.toLowerCase().indexOf(queryPrefix);
  if ((startPos < 0) || (startPos + queryPrefix.length == ref.length)) {
    return false;
  }
  
  var endPos = ref.indexOf("&", startPos);
  if (endPos < 0) {
    endPos = ref.length;
  }
  
  var queryString = ref.substring(startPos + queryPrefix.length, endPos);
  queryString = queryString.replace(/%20/gi, " ");
  queryString = queryString.replace(/\+/gi, " ");
  queryString = queryString.replace(/%22/gi, "");
  queryString = queryString.replace(/\"/gi, "");
  
  return highlightSearchTerms(queryString, false);
}