function makevisible(cur,which)
	{
	if(document.getElementById)
		{
		if (which==0)
			{
			if(document.all)
				cur.filters.alpha.opacity=100
			else
				cur.style.setProperty("-moz-opacity", 1, "");
			}
		else
			{
			if(document.all)
				cur.filters.alpha.opacity=40
			else
				cur.style.setProperty("-moz-opacity", .4, "");
			}
		}
	}
function vider_case(nom_case,texte_case) 
	{
		if(nom_case.value == texte_case){
			nom_case.value = '';
		}
	}
function remplir_case(nom_case,texte_case) 
	{
		if(nom_case.value == ''){
			nom_case.value = texte_case;
		}
	}
function aff_case(id)
	{
	if(document.getElementById(id).style.visibility == 'visible')
		{
		document.getElementById(id).style.visibility = 'hidden';
		document.getElementById(id).style.display = 'none';
		}
	else
		{
		document.getElementById(id).style.visibility = 'visible';
		document.getElementById(id).style.display = 'block';
		}
	}
function active_menu(id)
	{
	var mes_menus = new Array('general','barre','jeux','concours','bonus');
	for(i=0; i < mes_menus.length; i++)
		{
		var menu = mes_menus[i];
		if(menu != id)
			{
			document.getElementById('milieu_'+menu).style.display = "none";
			document.getElementById('milieu_'+menu).style.visibility = "hidden";
			document.getElementById('fleche_'+menu).style.display = "block";
			document.getElementById('fleche_'+menu).style.visibility = "visible";
			}
		else
			{
			document.getElementById('milieu_'+menu).style.display = "block";
			document.getElementById('milieu_'+menu).style.visibility = "visible";
			document.getElementById('fleche_'+menu).style.display = "none";
			document.getElementById('fleche_'+menu).style.visibility = "hidden";
			}
		}
	}