function switchMenu(obj, toogle, texteQuandFerme, texteQuandOuvert)
{
var el = document.getElementById(obj);
if ( el.style.display != "none" )
{
el.style.display = 'none';
toogle.innerHTML = texteQuandFerme;
}
else
{
el.style.display = '';
toogle.innerHTML = texteQuandOuvert;
}
}