<script language="JavaScript">
function sor(gwh){
document.m_chat.elements["name_chat"].focus();
document.m_chat.elements["name_chat"].value+= gwh;
}
function commentcheck(form_name) {
if (document.m_chat.elements['name_chat'].value == "") { alert('Введи имя!'); return false;
} else if (document.m_chat.elements['msg_chat'].value == "") { alert('А текст ввести?'); return false;
} else { return true; }}
</script>

<form method="post" name="m_chat" onSubmit="return commentcheck(m_chat);">
&nbsp;<input type="text" name="name_chat" size="19"><br>
&nbsp;<textarea name="msg_chat" cols="19" rows="3"></textarea><br>
&nbsp;<input class="button" type="submit" name="ok" value="ENTER">
</form>
</p>
</center>