function subscribe() {
	
	try {
		var GI = document.getElementById('groupId').value;
	} catch(e) {
		var GI = 0;
	}
	try {
		var CSS = document.getElementById('CSS').value;
	} catch(e) {
		var CSS = '';
	}
 	var LU = document.getElementById('letterUser').value;
	var NN = document.getElementById('u_newsletter_name').value;
	var NE = document.getElementById('u_newsletter_email').value;
	letterSignIn = window.open('http://applications.maxdoro.nl/newsletter/xmlGateway/catchSignIn.php?LU='+LU+'&NN='+NN+'&NE='+NE+'&GI='+GI+'&CSS='+CSS,'letterSignIn','width=300,height=200,scrollbars=yes,toolbar=no,location=no,resizable=yes'); 
	letterSignIn.focus();
	return false;

}
function clearDefault(el) {
  if (el.defaultValue==el.value) el.value = ""
}
function displayForm() {

	
	
	document.write("<div class='nieuwsbriefAanmeldenContainer'><form method='post' id='u_newsletter_form'>");
	document.write("<div class='nieuwsbriefAanmeldenNaam'><label for='u_newsletter_name'>Naam:</label><input value='Naam' type='text' name='u_newsletter_name' id='u_newsletter_name'  /></div>");
	document.write("<div class='nieuwsbriefAanmeldenEmail'><label for='u_newsletter_email'>E-mail:</label><input value='E-mail' type='text' name='u_newsletter_email' id='u_newsletter_email'  /></div>");
	document.write("<div class='nieuwsbriefAanmeldenButton'><input type='button' value='aanmelden' id='newsletter_request_button' onclick='subscribe();'/></div>");
	try {
		document.write("<input type='hidden' value='"+LetterGroup+"' id='groupId' />");
	} catch(e) {
		document.write("<input type='hidden' value='0' id='groupId' />");
	}
	try {
		document.write("<input type='hidden' value='"+CustomCSSLocation+"' id='CSS' />");
	} catch(e) {
		
	}
	document.write("<input type='hidden' value='"+LetterUser+"' id='letterUser' />");
	document.write("<input type='hidden' name='newsletter_action' value='do_subscribe' />");
	document.write("</form></div>");
	document.getElementById("u_newsletter_name").onclick = function() {clearDefault(this);};
	document.getElementById("u_newsletter_email").onclick = function() {clearDefault(this);};
}