function openNewsletter() {

	$('overlayer').innerHTML = "<p class=\"loading\"><img src=\"img/date_loader.gif\" border=\"0\" \/><br />loading...<\/p>";

	loadOverlayer();
	positionOverlayerElement('overlayer');
	
	$('overlayer').appear({ duration: 0.8 });
	$('overlay').observe('click', closeDate );
	
	new Ajax.Updater('overlayer', 'inc/ajaxNewsletter.inc.php', {
	  onComplete: function() { $('close').observe('click', closeNewsletter); }
	});

}

function closeNewsletter() {
 Event.stopObserving('overlayer', 'click');
 $('overlayer').hide();
 unloadOverlayer();
}





function submitNewsletter() {

 if($('newsletter_form')) {
  
   var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
   if((filter.test($F('newsletter_email')) == true))
    $('newsletter_form').request({ onComplete: function() { 
     $('newsletter').innerHTML = "Danke f&uuml;r dein Interesse."; 
     $('newsletter').addClassName('bold');
     } }) 
   else {
    $('newsletter_email').style.border = '1px solid red';
    $('newsletter_email').value = 'Deine Emailadresse';
   }
 }

}