krunk

function FindMahShit(regex) {
  for (var tx = document.evaluate('//text()[normalize-space(.)!=""]', document, null, 6, null), t, i = 0; t = tx.snapshotItem(i); i++) {
    var before =  t.textContent, st, matched = false;
    if (t.parentNode.tagName == 'STYLE' || t.parentNode.tagName == 'SCRIPT') continue;
    while ((st = before.search(regex)) != -1) {
        t.parentNode.insertBefore(document.createTextNode(before.substr(0, st)), t);
        with (t.parentNode.insertBefore(document.createElement('span'), t))
            textContent = RegExp.$1,
            style.cssText = 'color: #f00; font-size: 14pt;';
        matched = true;
        before = before.substr(st + RegExp.$1.length);
    }
    if (matched) t.textContent = before;
  }
}

window.addEventListener("load", function() {
  var RE = /(bin|high|lig|bef|by|dix|con|nt|di|sd|re|ele|ins|rt|var)/i;
  FindMahShit(RE);
}, false );