<script type="text/javascript">
// by Gambler www.nokia-love.ru
var slova = new Array("слово","слово2","слово3");mat = false;document.getElementById('sbm').style.display = "none";document.body.innerHTML = document.body.innerHTML.replace('<td colspan="2" align="center">','<td colspan="2" align="center"> <input id="prov" value="Отправить" onclick="proverka()" style="font-weight:bold; width:130px;" type="button" />');
function proverka () {
            for (i=0;i<slova.length;i=i+1) {
             if (document.getElementById('message').value.toLowerCase().indexOf(slova[i].toLowerCase()) != "-1") {_uWnd.alert('В сообщении найдено запрещеное слово - "' + slova[i] + '"','',{w:230,h:80,tm:3000});mat = true;}
            }
       if (mat == false) {document.getElementById('sbm').click();}
     mat = false;
}
</script>

"слово","слово2","слово3"