function verif_champs(lng)
{
switch(lng)
{
case "fr":
	if(document.form.nom.value == "")
	{
		alert("Veuillez entrer votre nom, merci");
		document.form.nom.focus();
		return false;
	}
	else if(document.form.prenom.value == "")
	{
		alert("Veuillez entrer votre prénom, merci");
		document.form.prenom.focus();
		return false;
	}
	else if(document.form.email.value == "")
	{
		alert("Veuillez entrer votre adresse email, merci");
		document.form.email.focus();
		return false;
	}
	else if(document.form.email.value.indexOf('@') == -1)
	{
		alert("Adresse Email invalide!");
		document.form.email.focus();
		return false;
	}
	else if(document.form.email.value.length <7)
	{
		alert("Adresse Email invalide!");
		document.form.email.focus();
		return false;
	}
	else if(document.form.message.value == "")
	{
		alert("Veuillez entrer votre message, merci");
		document.form.message.focus();
		return false;
	}
	else if(document.form.code.value == "")
	{
		alert("Veuillez recopier le code, merci");
		document.form.code.focus();
		return false;
	}
	else
	{
	return true;
	}
break;
case "en":
if(document.formen.nom.value == "")
	{
		alert("Please enter your name, thank you");
		document.formen.nom.focus();
		return false;
	}
	else if(document.formen.prenom.value == "")
	{
		alert("Please enter your firstname, thank you");
		document.formen.prenom.focus();
		return false;
	}
	else if(document.formen.email.value == "")
	{
		alert("Please enter your email, thank you");
		document.formen.email.focus();
		return false;
	}
	else if(document.formen.email.value.indexOf('@') == -1)
	{
		alert("Invalid Email Adress!");
		document.formen.email.focus();
		return false;
	}
	else if(document.formen.email.value.length <7)
	{
		alert("Invalid Email Adress!");
		document.formen.email.focus();
		return false;
	}
	else if(document.formen.message.value == "")
	{
		alert("Please enter your message, thank you");
		document.formen.message.focus();
		return false;
	}
	else if(document.formen.code.value == "")
	{
		alert("Please copy code, thank you");
		document.formen.code.focus();
		return false;
	}
	else
	{
	return true;
	}
break;
}
}