function verifUsername(username)
{
	var request = null;
	
	if(username != '') {
		if(username.length <= 3) {
			document.getElementById('freeuser').className = 'usernOK';
			document.getElementById('freeuser').innerHTML = "Nom d'utilisateur trop court.";
		}
		else if(username.length > 30) {
			document.getElementById('freeuser').className = 'usernOK';
			document.getElementById('freeuser').innerHTML = "Nom d'utilisateur trop long.";
		}
		else {
		
			if(window.XMLHttpRequest) {
				request = new XMLHttpRequest();	
			}
			else if(window.ActiveXObject) {
				request = new ActiveXObject("Microsoft.XMLHTTP");
			}
			else {
				return(false);
			}
			
			request.onreadystatechange = function() {
				if(request.readyState == 4) {
					if(request.responseText == "true") {
						document.getElementById('freeuser').className = 'usernOK';
						document.getElementById('freeuser').innerHTML = "Ce nom d'utilisateur est déjà pris";
					}
					else {
						document.getElementById('freeuser').className = 'userOK';
						document.getElementById('freeuser').innerHTML = "Ce nom d'utilisateur est libre";
					}
				}
			}
			
			request.open("POST", "/auth/exist", true);
			request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
			request.send("username="+escape(username));
			return true;
		}
	}
}

function checkUsername(username)
{
	var request = null;
	
	if(username != '') {
		
		if(window.XMLHttpRequest) {
			request = new XMLHttpRequest();	
		}
		else if(window.ActiveXObject) {
			request = new ActiveXObject("Microsoft.XMLHTTP");
		}
		else {
			return(false);
		}
		
		request.onreadystatechange = function() {
			if(request.readyState == 4) {
				if(request.responseText == "true") {
					var msg = document.getElementById('msgEtape1');
					msg.className = 'ko';
					msg.innerHTML = '<p>Ce nom d\'utilisateur existe déjà, veuillez choisir un autre nom.</p>';
				}
				else {
					verifMail(document.getElementById('email').value);
				}
			}
		}
		
		request.open("POST", "/auth/exist", true);
		request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
		request.send("username="+escape(username));
	}
}

function verifMail(mail)
{
	var request = null;
	
	if(mail != '') {		
		if(window.XMLHttpRequest) {
			request = new XMLHttpRequest();	
		}
		else if(window.ActiveXObject) {
			request = new ActiveXObject("Microsoft.XMLHTTP");
		}
		else {
			return(false);
		}
		
		request.onreadystatechange = function() {
			if(request.readyState == 4) {
				if(request.responseText == "true") {
					var msg = document.getElementById('msgEtape1');
					msg.className = 'ko';
					msg.innerHTML = '<p>Ce mail existe déjà, veuillez choisir une autre adresse.</p>';
				}
				else {
					document.forms['insEtape1'].submit();
				}
			}
		}
		
		request.open("POST", "/auth/checkmail", true);
		request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
		request.send("mail="+escape(mail));
	}
}