function writediv(debut)
	{
		document.getElementById('zonetraitement').innerHTML = debut+'Ce nom d\'utilisateur est '+texte+'</div>';
	}

function verificationMenu(username)
	{
		if(username != '')
			{

				if(texte = file('verif.php?username='+escape(username)))
					{
						if(texte == "occup&eacute;.")
							{
								writediv('<div class="erreur">');

							}
						else if(texte == "libre.")
							{
								writediv('<div class="reussi">');
							}
						else
							writediv(texte);
					}
			}

	}

function file(fichier)
	{
		if(window.XMLHttpRequest) // FIREFOX
			xhr_object = new XMLHttpRequest();
			
		else if(window.ActiveXObject) // IE
			xhr_object = new ActiveXObject("Microsoft.XMLHTTP");
			
		else
			return(false);

xhr_object.open("GET", fichier, false);
xhr_object.send(null);

		if(xhr_object.readyState == 4)
			return(xhr_object.responseText);
		else
			return(false);
	}