this.oldmenu="false";
this.oldbouton="false";

function detection() 
{document.write('<LINK REL=STYLESHEET HREF="/text.css" TYPE="text/css">');}

function entre(nom)
{
document.images[nom].src=chemin+nom+"_2.png";
this.oldbouton=nom;
}

function sort()
{
if(this.oldbouton!="false")
	{
	document.images[oldbouton].src=chemin+oldbouton+"_1.png";
	this.bouton="false";
	}
}

function change(nom,lien)
{document.images[nom].src=lien;}

/*
function zoom(nom)
{window.open("/zoom.php?image="+nom,"","");}
*/

function hideit(action,nom_layer) {
  if (document.layers) {
    // Netscape 4 stuff
    var cible = document.layers[nom_layer];
  } else if (document.getElementById) {
    // IE 5 and Netscape 6
    var cible = document.getElementById(nom_layer);
  } else if (document.all) {
    // IE 4 ??
    var cible = document.all(nom_layer);
  } else {
    alert("Probl&egrave;me avec votre navigateur");
  }
  if (cible.style) 
  {
    // IE4 ??, IE5, Netscape 6

    if (action) { cible.style.visibility = "hidden"; } 
	else { cible.style.visibility = "visible"; }
  } 
  else {
    // Netscape 4
    if (action) { cible.visibility = "hide";} 
	else { cible.visibility = "show"; }
  }
}

function hideall() {
	hideit(true,"lactualite1");
	hideit(true,"lactualite2");
	hideit(true,"lactualite3");
}

function montre(nomlayer)
{
hideit(false,nomlayer);
hideit(false,"zone1");
hideit(false,"zone2");
this.oldmenu=nomlayer;

}


function cache()
{
hideit(true,"zone1");
hideit(true,"zone2");
if(this.oldmenu!="false"){
hideit(true,oldmenu);
this.oldmenu="false";}
}

function verifie() {
var chaine = "";
if (document.forms[0].elements.nom.value ==""){ chaine = chaine + "- Nom\n"; }
if(document.forms[0].sujet.options[document.forms[0].sujet.selectedIndex].value == "selectionner"){ chaine = chaine + "- Sujet\n"; }
if (document.forms[0].elements.email.value ==""){ chaine = chaine + "- Email\n"; }
if (document.forms[0].elements.message.value ==""){ chaine = chaine + "- Message\n"; }
if (chaine != "")
        {
        alert("ERREUR\nLes champs suivants sont obligatoires :\n" + chaine);
        return false;
        }
else { return true;}
}

function verifie2() {
var chaine = "";
if (document.forms[0].elements.nom.value ==""){ chaine = chaine + "- Name\n"; }
if (document.forms[0].elements.email.value ==""){ chaine = chaine + "- Email\n"; }
if (document.forms[0].elements.message.value ==""){ chaine = chaine + "- Message\n"; }
if (chaine != "")
        {
        alert("ERREUR\nYou must fill the following fields :\n" + chaine);
        return false;
        }
else { return true;}
}


function zoom(nom)
{
window.open("/zoom.php?image="+nom,"zoom","toolbar=no,location=no,directories=no,menubar=no, scrollbars=no,status=no,resizable=no,width=400, height=180, alwaysraised=yes");
}