function newsletterEmptyEmail(curClass)
{
	if(curClass != 'nbemailentered')
	{
		$('nb_email').className = 'nbemailentered';
		$('nb_email').value = '';
	
	}
}


function checkEmail(email)
{
if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(email)) { return true; } else { return false; } 
}



function newsletterSignup()
{
	var email = $('nb_email').value;
	
	if(!checkEmail(email)) { alert("You haven't entered a correct e-mail adress"); return false; } 
	
	
	
	var confirmText = "Are you sure that you want to sign-up the e-mail adress "+email+" for our newsletter?";
	if(confirm(confirmText))
	{
		/* Send signup AJAX request */
		var url = '/modules/newsletter/newsletter.php?action=signup&email='+email+'&vlag=en';
		new Ajax.Request(url, { 
			method: 'get',
			onSuccess: function(transport) { alert(transport.responseText); }
		});
		
		$('nb_email').value = '';
		
	}
}