function menu (o, etat) {
	for (var j=0;j<o.childNodes.length;j++) {
		var k=o.childNodes[j];
		if (k.tagName == 'UL') k.style.display=etat;
	}
}
var premier=document.getElementById('primary-nav');
function parcoursmenu(obj) {
	var tab = obj.childNodes;
	for (var i=0;i<tab.length;i++) {
		try{
			//alert(tab[i].tagName+" "+tab[i].className.search(/menuparent/));
			if (tab[i].tagName == 'LI' && tab[i].className.search(/menuparent/)>=0) {
				tab[i].onmouseover=function () {return menu(this, 'block');};
				tab[i].onmouseout=function () {return menu(this, 'none');};
				var tar=tab[i].childNodes;
				//alert(tar.length);
				for (var s=0;s<tar.length;s++) {
					if (tar[s].tagName == 'UL') {parcoursmenu(tar[s]);}
				}
			}
			//else alert(tab[i]);
		}
		catch (er) {alert(er);}
	}
}
parcoursmenu(premier);