// controle de saisie des champs
function valideChamps()
{
	frm = window.document.forms[0];
	var continuer = true;
	var erreur = false;
	var msg = "Incomplete form:\n\n" ;
	if (frm.nom.value == ""  || frm.nom.value == null)
	{
		msg = msg + "Complete your last name\n";
		erreur = true;	
		continuer = false	
		change_Couleur(frm.nom);
	}	
	if (frm.prenom.value == "" || frm.prenom.value == null)
	{
		msg = msg + "Complete your first name\n";
		erreur = true;	
		continuer = false	
		change_Couleur(frm.prenom);
	}
	if (frm.adresse.value == "" || frm.adresse.value == null)
	{
		msg = msg + "Complete your adress\n";
		erreur = true;	
		continuer = false	
		change_Couleur(frm.adresse);
	}
	if (frm.cp.value == "" || frm.cp.value == null)
	{
		msg = msg + "Complete your ZIP code\n";
		erreur = true;	
		continuer = false	
		change_Couleur(frm.cp);
	}
	if (frm.commune.value == "" || frm.commune.value == null)
	{
		msg = msg + "Complete your city\n";
		erreur = true;	
		continuer = false	
		change_Couleur(frm.commune);
	}
	if (frm.mel.value == "" || frm.mel.value == null)
	{
		msg = msg + "Complete your e-mail adress\n";
		erreur = true;	
		continuer = false;	
		change_Couleur(frm.mel);
	}
	 else 	if(frm.mel.value.indexOf('@') == -1) 
		{
		msg = msg + "Your e-mail adress is not valid, thank's to verify it\n";
		change_Couleur(frm.mel);
	     erreur = true;
		continuer = false;	
 	}
	if (frm.message.value == "" || frm.message.value == null)
	{
		msg = msg + "\n\n***Thank's to complete your message***\n";
		erreur = true;
		continuer = false;	
		change_Couleur(frm.message);
	}
	if (erreur)
	{
		Error(msg);
	}
return continuer;
}

// couleurs de champs en erreur
function change_Couleur(elem) 
{
  if (elem.style) elem.style.backgroundColor = "#ACE2F8";
}

function efface_Couleur(elem) 
{
  if (elem.style) elem.style.backgroundColor = "#FFFFFF";
}

function Error(msg)
{
		alert(msg);
}