function changeCurrentItem(){
	var page_name = document.getElementById("nom_page").value;
	if(page_name == "index")
		page_name = "accueil";
	
	elem = page_name;
	
	var nav = document.getElementById("nav");
	for(i=0; i < nav.childNodes.length; i++){
		nav.childNodes[i].className = "";
		if(nav.childNodes[i].id == elem)
			nav.childNodes[i].className = "current";
	}
}