contactForm='<form  method="POST"><table><input type="hidden" name="action" value="send"><tr><td>Naam:</td><td align="right"> <input type="text" name="naam" size=40 class="textinput"></td></tr>';
contactForm+='<tr><td>E-mailadres:</td><td align="right"> <input type="text" name="email" size=40 class="textinput"></td></tr>';
contactForm+='<tr><td>Onderwerp:</td><td align="right"> <input type="text" name="onderwerp" size=40 class="textinput"></td></tr>';
contactForm+='<tr><td colspan=2><p>Bericht:<br>';
contactForm+='<textarea name="bericht" cols="50" rows="4" class="textinput"></textarea><br><br>';
contactForm+='<button  style="padding:4px;border:1px solid #cccccc;background-color:#406FA4;color:#ffffff;cursor:pointer" type="submit">Verstuur bericht</button></td></tr>';
contactForm+='</table>';
contactForm+='</form>';

function showContactForm(){
document.write(contactForm);

}