function validEmail(email)
{
	var x = email
	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if (filter.test(x)) return true;
	else return false;
}

function validateFields() {
var frmEl = document.getElementById('cForm');
var nome = document.getElementById('nome');
var cognome = document.getElementById('cognome');
var telefono = document.getElementById('telefono');
var email = document.getElementById('email');
var messaggio = document.getElementById('messaggio');

var whiteSpace = /^[\s]+$/;
	if ( messaggio.value == '' || whiteSpace.test(messaggio.value) || nome.value == '' || whiteSpace.test(nome.value) ||  !validEmail(email.value)) {
		if ( !validEmail(email.value))
        alert("Inserisci una indirizzo email valido."); else
        alert("Compila i campi contrasseganti con l'asterisco (*)");
	}
		else {
		sendPosEmail();
	}
}

function sendPosEmail () {
	var success = document.getElementById('emailSuccess');
	var nome = document.getElementById('nome');
    var cognome = document.getElementById('cognome');
	var email = document.getElementById('email');
	var telefono = document.getElementById('telefono');
	var messaggio = document.getElementById('messaggio');
	var page = "scripts/xmlHttpRequest.php?contact=true&xml=true";
	
	showContactTimer(); // quickly begin the load bar
	success.style.display = 'none'; // hide the success bar (incase this is a multi-email
	
	// convert (&, +, =) to string equivs. Needed so URL encoded POST won't choke.
	var str1 = nome.value;
	str1 = str1.replace(/&/g,"**am**");
	str1 = str1.replace(/=/g,"**eq**");
	str1 = str1.replace(/\+/g,"**pl**");
    var str2 = cognome.value;
	str2 = str2.replace(/&/g,"**am**");
	str2 = str2.replace(/=/g,"**eq**");
	str2 = str2.replace(/\+/g,"**pl**");
	var str3 = email.value;
	str3 = str3.replace(/&/g,"**am**");
	str3 = str3.replace(/=/g,"**eq**");
	str3 = str3.replace(/\+/g,"**pl**");
    var str4 = telefono.value;
	str4 = str4.replace(/&/g,"**am**");
	str4 = str4.replace(/=/g,"**eq**");
	str4 = str4.replace(/\+/g,"**pl**");
	var str5 = messaggio.value;
	str5 = str5.replace(/&/g,"**am**");
	str5 = str5.replace(/=/g,"**eq**");
	str5 = str5.replace(/\+/g,"**pl**");
	
    var stuff = "nome="+str1+"&cognome="+str2+"&email="+str3+"&telefono="+str4+"&messaggio="+str5;
	loadXMLPosDoc(page,stuff)
}
function showContactTimer () {
	var loader = document.getElementById('loadBar');
	loader.style.display = 'block';
	sentTimer = setTimeout("hideContactTimer()",6000);
}

function hideContactTimer () {
	var loader = document.getElementById('loadBar');
	var success = document.getElementById('emailSuccess');
	var fieldArea = document.getElementById('contactFormArea');
	var inputs = fieldArea.getElementsByTagName('input');
	var inputsLen = inputs.length;
	var tAreas = fieldArea.getElementsByTagName('textarea');
	var tAreasLen = tAreas.length;
	// Hide the load bar alas! Done Loading
	loader.style.display = "none";
	success.style.display = "block";
	success.innerHTML = '<strong style="color:green;">'+grabPosXML("confirmation")+'</strong>';
	// Now Hijack the form elements
	for ( i=0;i<inputsLen;i++ ) {
		if ( inputs[i].getAttribute('type') == 'text' ) {
			inputs[i].value = '';
		}
	}
	for ( j=0;j<tAreasLen;j++ ) {
		tAreas[j].value = '';
	}
}

function ajaxContact() {
var frmEl = document.getElementById('cForm');
addEvent(frmEl, 'submit', validateFields, false);
frmEl.onsubmit = function() { return false; }
}
addEvent(window, 'load',ajaxContact, false);