function subscribeNewsletter() {
	advAJAX.post({
		url: '/newsletter/',
		timeout : 30000,
    parameters : {
      "add" : document.getElementById('nemail').value, "lang" : document.getElementById('lang').value
    },
		unique: false,
		onSuccess : function(obj)
		{
			msg = obj.responseText.split(';');
			document.getElementById('newsletter').innerHTML = '<h3>Newsletter</h3><p>' + msg[1] + '</p>';
			resizeView();
		}
	});

	document.getElementById('newsletter').innerHTML = '<h3>Newsletter</h3><p class="loader"><img src="/i/loader.gif" width="16" height="16" alt="Trwa ładowanie" /></p>';	
	resizeView();
	return false;
}

function clearNInput() {
	if(document.getElementById('nemail').value == 'ADRES E-MAIL') {
		document.getElementById('nemail').value = '';
	}
}

function restoreNInput() {
	if(document.getElementById('nemail').value == '') {
		document.getElementById('nemail').value = 'ADRES E-MAIL';
	}
}