var ns = (navigator.appName == "Netscape") ? 1:0
var ie = (navigator.appName == "Microsoft Internet Explorer") ? 1:0

function rien(){
	//on en fait rien !
}

function montrer(nomOnglet){
	var onglet = window.document[nomOnglet];
	if(onglet.style.visibility == 'visible') {
		cacher(nomOnglet);
	} else {
		onglet.style.visibility ='visible';
	}
}
function cacher(nomOnglet){
	var onglet = window.document[nomOnglet];
	onglet.style.visibility='hidden';
}
function montrerId(nomOnglet){
	var onglet = window.document.getElementById(nomOnglet);
	if(onglet.style.visibility == 'visible') {
		cacherId(nomOnglet);
	} else {
		onglet.style.visibility ='visible';
	}
}
function cacherId(nomOnglet){
	var onglet = window.document.getElementById(nomOnglet);
	onglet.style.visibility='hidden';
}

function ouvrirPage(url){
	window.document.location.href=url;
}


function largeur_fenetre()
{
 if (window.innerWidth) return window.innerWidth;
 else if (document.body && document.body.offsetWidth) return document.body.offsetWidth;
 else return 0;
}

function hauteur_fenetre()
{
 if (window.innerHeight) return window.innerHeight  ;
 else if (document.body && document.body.offsetHeight) return document.body.offsetHeight;
 else return 0;
}

function debutDivCentre(){
	var valLeft = 0;
	if(largeur_fenetre() > 1000){
		valLeft = (largeur_fenetre()- 1000 - 20)/2
	}
	document.write("<div style='position: absolute; top: 0px;left: ");
	document.write(valLeft);
	document.write("px;'>");
}

function debutDivCentreMenu(){
	var valLeft = 0;
	if(largeur_fenetre() > 1000){
		valLeft = (largeur_fenetre()- 1000 - 20)/2
	}
	document.write("<div style='visibility: hidden;position: absolute; top: 8px;left: ");
	document.write(valLeft + 2);
	document.write("px; width: auto;height: auto;' id='menu'>");
}

function gestionTouchesDown(e) {
  var targ;
  var evt;
  var charCode;
  if (ns) {
    evt=e;
    targ = evt.target;
    charCode = evt.which;
  } else {
    evt=window.event;
    targ = evt.srcElement;
    charCode = evt.keyCode;
  }
  if(charCode == 13){
  	if(document.f_login){
  		document.f_login.submit();
  	} else if(document.f_inscription){
  		document.f_inscription.submit();
  	} 
  }

  return charCode;
}