function VerifNum(numtel)
 {
 var regex = new RegExp(/^0[1-68]([\.|\-|\s]*[0-9]{2}){4}$/);
 var match = false;
 if(regex.test(numtel))
	 {
	 match = true;
	 }
 else
	 {
	 match = false;
	 }
 return match;
 }

var appelForm = function()
	{
	if(document.getElementById("nom").value=="" || document.getElementById("prenom").value=="" || document.getElementById("numtel").value=="" || document.getElementById("pays").options[document.getElementById("pays").selectedIndex].value=="")
		{
		alert("Veuillez remplir tous les champs.");
		}
	else if(!VerifNum(document.getElementById("numtel").value))
		{
		alert("Numéro invalide.");
		}
	else
		{
		var xhr_object = new_xhr();
		xhr_object.open("POST", "sitevirtuel/executor.php?as=FormAppel", true);
		xhr_object.onreadystatechange = function () {  
			if ( xhr_object.readyState == 4 )
				{
				if(xhr_object.status  != 200)
					{
					document.getElementById("appelgratuit").innerHTML ="Erreur code " + xhr_object.status;  
					}
				else
					{
					document.getElementById("appelgratuit").innerHTML = xhr_object.responseText;  
					}  
				}
			}  
		xhr_object.setRequestHeader('Content-Type','application/x-www-form-urlencoded');  
		xhr_object.send("nom="+document.getElementById("nom").value+"&prenom="+document.getElementById("prenom").value+"&pays="+document.getElementById("pays").options[document.getElementById("pays").selectedIndex].value +"&numtel="+document.getElementById("numtel").value); 
		}
	}