// JavaScript Document
function changerImageMav(id){
var mesDiv = document.getElementsByTagName("div");
	for (i = 0; i < mesDiv.length; i++) {
		if (mesDiv[i].id.substring(0, 4) == "mav_"){
		mesDiv[i].style.visibility = 'hidden'; 
		}
	}
	
	document.getElementById('mav_' + id).style.visibility = 'visible';
}

function verifierForm(id_form){
var err=0;
	if(document.getElementById('nom').value==""){
	err=1;
	}
	if(document.getElementById('prenom').value==""){
	err=1;
	}
	if(document.getElementById('adresse').value==""){
	err=1;
	}
	if(document.getElementById('cp').value==""){
	err=1;
	}
	if(document.getElementById('ville').value==""){
	err=1;
	}
	if(document.getElementById('mail').value==""){
	err=1;
	}
	
	if(err==1){
	alert ("Vous n'avez pas rempli tous les champs.");
	}
	else{
	document.getElementById(id_form).submit();
	}
}