Hi all.

While writing my JSP i had problems with my attribute tags.
I tried to update and refresh my class path but nothing works. Everyting in my code seems ok(liek every programmer thinks ofc ;) ), so i rly don't see why i can't compile my code.

following code gives me an "error"

Code:
Java Code:
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
Error:
Java Code:
Multiple annotations found at this line:
	- Undefined attribute name 
	 (xmlns).
	- Undefined attribute name 
	 (xml:lang).
then another error at:

code:
Java Code:
<div id="error"><c:if test="${leegVeld==true}">
	<font color='red'><b>${errorMsg}</b></font>
</c:if></div>
error:
Java Code:
Invalid attribute (test).

JSP Page:
Java Code:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@taglib uri="http://java.sun.com/jstl/core" prefix="c"%>
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >

<head>
<title>Mailing Service</title>
<script type="text/javascript" src="validateContact.js"></script>
<meta http-equiv="content-type" content="text/html; charset=iso-8859-1" />
</head>
<body onload="javascript:load()">
<form method="post" action="/Alfa-Zet/Mailing">
<table border="0" align="left">
	<tr>
		<td>Naam:</td>
		<td><input name="naam" type="text" id="txtNaam"
			value="${param.naam}" onkeyup="javascript:validate('txtNaam', 0)"
			onblur="javascript:validate('txtNaam', 0)" />*</td>
	</tr>
	<tr>
		<td>Voornaam:</td>
		<td><input name="voornaam" type="text" id="txtVoornaam"
			value="${param.voornaam}"
			onkeyup="javascript:validate('txtVoornaam', 1)"
			onblur="javascript:validate('txtVoornaam', 1)" />*</td>
	</tr>
	<tr>
		<td>Adres:</td>
		<td><input name="adres" type="text" id="txtAdres"
			value="${param.adres}" onkeyup="javascript:validate('txtAdres', 2)"
			onblur="javascript:validate('txtAdres', 2)" />*</td>
	</tr>
	<tr>
		<td>Postcode:</td>
		<td><input name="postcode" type="text" id="txtPostcode"
			value="${param.postcode}"
			onkeyup="javascript:validate('txtPostcode', 3)"
			onblur="javascript:validate('txtPostcode', 3)" />*</td>
	</tr>
	<tr>
		<td>Plaats:</td>
		<td><input name="plaats" type="text" id="txtPlaats"
			value="${param.plaats}" onkeyup="javascript:validate('txtPlaats', 4)"
			onblur="javascript:validate('txtPlaats', 4)" />*</td>
	</tr>
	<tr>
		<td>land:</td>
		<td><input name="land" type="text" id="txtLand"
			value="${param.land}" onkeyup="javascript:validate('txtLand', 5)"
			onblur="javascript:validate('txtLand', 5)" />*</td>
	</tr>
	<tr>
		<td>E-mail:</td>
		<td><input name="mail" type="text" id="txtMail"
			value="${param.mail}" onkeyup="javascript:validateMail()"
			onblur="javascript:validateMail()" />*</td>
	</tr>
	<tr>
		<td>Telefoon:</td>
		<td><input name="telefoon" type="text" id="txtTelefoon"
			value="${param.telefoon}"
			onkeyup="javascript:validate('txtTelefoon', 7)"
			onblur="javascript:validate('txtTelefoon', 7)" />*</td>
	</tr>
	<tr>
		<td>ID-Nummer:</td>
		<td><input name="idNummer" type="text" id="txtIdNummer"
			value="${param.idNummer}"
			onkeyup="javascript:validate('txtIdNummer', 8)"
			onblur="javascript:validate('txtIdNummer', 8)" />*</td>
	</tr>
	<tr>
		<td rowspan="6" valign="top">Vraag/opmerking:</td>
		<td><textarea name="bericht" rows="10" cols="40" id="txtBericht"
			onkeyup="javascript:validate('txtBericht', 9)"
			onblur="javascript:validate('txtBericht', 9)">${param.bericht}</textarea>*</td>
	</tr>
	<tr>
		<td><input value="Verstuur" id="submit" class="searchbutton"
			name="submit" type="submit" onclick="javascript:clicked(true)" /> <input
			type="reset" class="searchbutton" value="Opnieuw"
			onclick="javascript:clear()" /></td>
	</tr>
</table>
</form><div id="error"><c:if test="${leegVeld==true}">
	<font color='red'><b>${errorMsg}</b></font>
</c:if></div>
</body>
</html>
i tried everything but everytime i i get an error about the tag library.
Tried updating the tag library, downgrading it, refreshing it. Made a new project. Nothing works. I hope some1 can show me what i'm doing wrong.

Another question i have is... How can i talk to my servlet in the button?

I got:

Java Code:
<form method="post" action="/Alfa-Zet/Mailing">
Alfa-Zet is my project name and Mailing is my Mailing.java servlet. Wich is in a folder MailingService. I tried to do

Java Code:
/Alfa-Zet/Mailing
and
Java Code:
/Alfa-Zet/Mailing.java
and
Java Code:
/Alfa-Zet/MailingService/Mailing
and
Java Code:
/Alfa-Zet/MailingService/Mailing.java
and even
Java Code:
Mailing
&
Java Code:
Mailing.java
everytime when i compile this i get

Java Code:
description The requested resource (/Alfa-Zet/Mailing) is not available.
Ps: I use Tomcat 6.0 as a local server.

Thanks in advance!

Best regards,
Dieter