this.current_region = 0;

function ge(id) {
  var el = document.getElementById(id);
  if(el) {
    return el
  } else {
    return false;
  }
}

function carte_normal() {
  var el = ge("objet_carte");
  el.src = "i/carte_0.jpg";
}

function carte_hover(id) {
  var el = ge("objet_carte");
  if(id) {
    el.src = "i/carte_" + id + ".jpg";
  }
}

function carte_click(id) {
  this.current_region = id;
  
  var el = ge("objet_info");
  var info = ge("region_" + id);
  var explication = ge("carte_explication");
  var region_info = ge("carte_info");
  
  explication.style.display = "none";
  region_info.style.display = "block";
  
  if(info) {
    el.innerHTML = info.innerHTML;
  }
}

function carte_out() {
  var el = ge("objet_carte");
  el.src = "i/carte_" + this.current_region + ".jpg";
}