function displayEmail()
{
	var user = 'example';
	var domain = 'example.com';
	var subdomain = 'sub';
	var email = document.createElement('a');
	email.href = 'mailto:' + user + '@' + subdomain + '.' + domain;
	email.appendChild(document.createTextNode(user + '@' + subdomain + '.' + domain));
	
	document.getElementById('email').appendChild(email);
}