function montre(id) {
  	if (document.getElementById) {
	 document.getElementById(id).style.visibility="visible";
	 document.getElementById(id).style.display="block";
	} else if (document.all) {
	  document.all[id].style.visibility="visible";
	  document.all[id].style.display="block";
	} else if (document.layers) {
	  document.layers[id].visibility="visible";
	  document.layers[id].display="block";
	}
}

function cache(id) {
	if (document.getElementById) {
	  document.getElementById(id).style.visibility="hidden";
	  document.getElementById(id).style.display="none";

	} else if (document.all) {
	  document.all[id].style.visibility="hidden";
	  document.all[id].style.display="none";

	} else if (document.layers) {
	  document.layers[id].visibility="hidden";
	  document.layers[id].display="none";
	}
}


function hover(obj){
  if(document.all){
    UL = obj.getElementsByTagName('ul');
    if(UL.length > 0){
      sousMenu = UL[0].style;
      if(sousMenu.display == 'none' || sousMenu.display == ''){
        sousMenu.display = 'block';
      }else{
        sousMenu.display = 'none';
      }
    }
  }
}