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);
}

function writediv(id , texte , statut , id_form)
{
    document.getElementById(id).innerHTML = texte;
	if(statut != '')
	{
		var elementDeReference = document.getElementById(id);
		var elementForm = document.getElementById(id_form);
		if(statut == 'erreur')
		{
			elementDeReference.className = 'form-erreur';
			elementForm.className = 'input-erreur';
		}else if(statut == 'ok')
		{
			elementDeReference.className = 'form-ok';
			elementForm.className = 'input-ok';
			document.getElementById(id).innerHTML = '';
		}
	}
}