Хак выводит подсказки в формах при регистрации на Ajax

<script type="text/javascript">function checkUsernameForLength(whatYouTyped) {    var fieldset = whatYouTyped.parentNode;    var txt = whatYouTyped.value;    if (txt.length > 5) {        fieldset.className = "welldone";    }    else {        fieldset.className = "";    }}function checkPassword(whatYouTyped) {    var fieldset = whatYouTyped.parentNode;    var txt = whatYouTyped.value;    if (txt.length > 3 && txt.length < 8) {        fieldset.className = "kindagood";    } else if (txt.length > 7) {        fieldset.className = "welldone";    } else {        fieldset.className = "";    }}function checkEmail(whatYouTyped) {    var fieldset = whatYouTyped.parentNode;    var txt = whatYouTyped.value;    if (/^w+([.-]?w+)*@w+([.-]?w+)*(.w{2,3})+$/.test(txt)) {        fieldset.className = "welldone";    } else {        fieldset.className = "";    }}function addLoadEvent(func) {  var oldonload = window.onload;  if (typeof window.onload != 'function') {    window.onload = func;  } else {    window.onload = function() {      oldonload();      func();    }  }}function prepareInputsForHints() {  var inputs = document.getElementsByTagName("input");  for (var i=0; i<inputs.length; i++){    inputs[i].onfocus = function () {      this.parentNode.getElementsByTagName("span")[0].style.display = "inline";    }    inputs[i].onblur = function () {      this.parentNode.getElementsByTagName("span")[0].style.display = "none";    }  }}addLoadEvent(prepareInputsForHints);</script>

<fieldset>Имя:<br><input type="text" name="name" onkeyup="checkUsernameForLength(this);" id='name'><span class="hint">Введите ваше имя!</span><br></fieldset><fieldset>Пароль:<br><input type="password" onkeyup="checkPassword(this);" name="password1"><span class="hint">Введите пароль, не меньше 6 знаков.</span><br></fieldset><fieldset>Повторите пароль:<br><input type="password" onkeyup="checkPassword(this);" name="password2"><span class="hint">Повторите пароль.</span><br></fieldset><fieldset>Ваш E-Mail:<br><input type="text" onkeyup="checkEmail(this);" name="email"><span class="hint">Введите E-mail, просим вас указывать реальные адреса.</span><br></fieldset>

fieldset {    border:0;    padding:10px;    margin:10px;    position:relative;}span.hint {    font:normal 11px/14px verdana;    background:#eee;    color:#444;    border:1px solid #888;    padding:5px 5px 5px 40px;    width:250px;    position:absolute;    margin: -12px 0 0 14px;    display:none;}fieldset.welldone span.hint {    background:#9fd680;    border-color:#749e5c;    color:#000;}fieldset.kindagood span.hint {    background:#ffffcc;    border-color:#cc9933;}