// JavaScript Document
  // Les fonctions qui servent pour afficher et masquer les différents calques de recherche
  function isNetscape4() { ns4 = (document.layers) ? true : false; return ns4; }
  function isOtherBrowser() { other = (document.getElementById) ? true : false; return other; }

  function insertLayer(_layerName) {
    if (isNetscape4()) {
      calc=document.layers[_layerName];
      if (calc.visibility=='hidden') calc.visibility='visible';
    } else if (isOtherBrowser()) {
      calc=document.getElementById(_layerName);
      if (calc.style.display=='none') calc.style.display='block';
    }
  }

  function removeLayer(_layerName) {
    if (isNetscape4()) {
      calc=document.layers[_layerName];
      if (calc.visibility=='hidden') calc.visibility='visible';
    } else if (isOtherBrowser()) {
      calc=document.getElementById(_layerName);
      if (calc.style.display=='block') calc.style.display='none';
    }
  }

  function MM_jumpMenu(targ,selObj,restore){ //v3.0
    eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
    if (restore) selObj.selectedIndex=0;
  }