function menu(nom)
{
	document.getElementById("ico_"+nom).src="image/icone_"+nom+"_off.jpg";
}
function menu_off(nom)
{
	document.getElementById("ico_"+nom).src="image/icone_1.gif";
}
function menu_site(nom)
{
	document.getElementById("ico_"+nom).src="image/icone_"+nom+"_haut.gif";
}
function menu_site_off(nom)
{
	document.getElementById("ico_"+nom).src="image/icone_"+nom+"_fond.gif";
}
function grande_photo(nom_img)
{
	document.getElementById("photo").src="photo/"+nom_img+".jpg";
	document.getElementById("grande").style.display="";
}
function fermer_photo()
{
	document.getElementById("photo").src="";
	document.getElementById("grande").style.display="none";
}
function grande_photo_act(nom_img)
{
	document.getElementById("photo").src="photo_act/"+nom_img;
	document.getElementById("grande").style.display="";
}
function fermer_photo_act()
{
	document.getElementById("photo").src="";
	document.getElementById("grande").style.display="none";
}