function change_image(name_img){
	document.getElementById("image_principale").innerHTML ='<img src="'+name_img+'" width="370" Height="370">';
}

function checkFromNewsletter(){
	var check = "";
	
	if (isEmpty("email") == false)
		check = "Error: email absent!";
		
	if (isEmail("email") == false)
		check = "Error: email faux!";	
	
	if (check != ""){
		alert(check);
		return false;
	}
	
	return true;
}

function ControlCustomerRegistred(){
	var check = "";
	
	if (isEmpty("name") == false)
		check = "Error: nom absent!";
	
	if (isEmpty("firstName") == false)
		check = "Error: prenom absent!";
		
	if (isEmpty("adress_fact") == false)
		check = "Error: adresse de facturation absent!";
		
	if (isEmpty("cp_fact") == false)
		check = "Error: code postale de facturation absent!";
		
	if (isEmpty("city_fact") == false)
		check = "Error: ville de facturation absent!";
	
	if (isEmpty("adress_liv") == false)
		check = "Error: adresse de livraison nom absent!";
		
	if (isEmpty("cp_liv") == false)
		check = "Error: code postale de livraison absent!";
		
	if (isEmpty("city_liv") == false)
		check = "Error: ville de livraison absent!";
	
	if (isEmpty("date_nais") == false)
		check = "Error: date de naissance absent!";
	
	if (isEmpty("email") == false)
		check = "Error: email absent!";
	
	if (isEmpty("num_phone") == false)
		check = "Error: téléphone absent!";

	if (isEmpty("password") == false)
		check = "Error: password absent!";
		
	if (isEmail("email") == false)
		check = "Error: email faux!";	
	
	if (isDatenNaissance("date_nais") == false)
		check = "Error: date de naissance faux!";	
	
	if (isEmpty("countryID") == false)
		check = "Error: pays absent!";

	if (check != ""){
		alert(check);
		return false;
	}
	
	return true;	
}

function isDatenNaissance(id){
	if(document.getElementById(id).value.length != 10){
		return false;
	}else{
		return true;
	}
	
	if(document.getElementById(id).value.indexOf("/",1) == -1){
		return false;
	}else{
		return true;
	}
}