function test_form(){
	var messageErreur = '<img src="images/cross_small.gif" /> <small><span style="color:#ff3300">Field required !</span></small>';
	var messageOK = '<img src="images/tick_small.gif" /> &nbsp;';
	var autorisation = true;
	
	var name = document.form.name.value;
	var email = document.form.email.value;
	var subject = document.form.subject.value;
	var message = document.form.message.value;
	var spam = document.form.spam.value;
	
	sending();
	
	if (spam == ""){ 
		document.getElementById('label_spam').innerHTML = messageErreur;
		document.form.spam.focus();
		autorisation = false;
	}
	else { document.getElementById('label_spam').innerHTML = messageOK; }
	
	if (message == ""){ 
		document.getElementById('label_message').innerHTML = messageErreur;
		document.form.message.focus();
		autorisation = false;
	}
	else { document.getElementById('label_message').innerHTML = messageOK; }
	
	document.getElementById('label_subject').innerHTML = messageOK;
		
	if ( (email == "")||(!emailvalid(email)) ){ 
		if (email == "") {
			document.getElementById('label_email').innerHTML = messageErreur;
		}else{
			document.getElementById('label_email').innerHTML = '<img src="images/cross_small.gif" /> <small><span style="color:#ff3300">Unvalid email !</span></small>';
		}
		document.form.email.focus();
		autorisation = false;
	}
	else { document.getElementById('label_email').innerHTML = messageOK; }
	
	if (name == ""){ 
		document.getElementById('label_name').innerHTML = messageErreur;
		document.form.name.focus();
		autorisation = false;
	}
	else { document.getElementById('label_name').innerHTML = messageOK; }
	
	if (autorisation) {
		    sending();
			return true;
		}else{
			afficher_le_titre();/*document.getElementById('label_message_confirmation').innerHTML = '';*/
			return false;
		}
}

function emailvalid(mail) 
{ 
	if ((mail.indexOf("@")>=0)&&(mail.indexOf(".")>=0)) { 
		return true
	} else {
		return false
	} 
}

function confirmation_mail_envoye(){
	document.getElementById('label_message_confirmation').innerHTML = '<p><img src="images/tick.gif" /> Your message is sent, I will get back to you as soon as possible.<br /></p>';
}

function erreur_spam(){
	document.getElementById('label_message_confirmation').innerHTML = '<p><img src="images/cross.gif" /> The number you entered is not correct, your message is not sent.<br /></p>';
}

function sending(){
	document.getElementById('label_message_confirmation').innerHTML = '<img src="images/ajax-loader.gif" />';
}

function afficher_le_titre(){
	document.getElementById('label_message_confirmation').innerHTML = '<h3>Let\'s get in touch !</h3>';
}