function initialiser()
{
	var cible_menu = document.getElementById('menu');
	var cible_ssmenu = cible_menu.getElementsByTagName('ul');
	var cible_rubssmenu = cible_menu.getElementsByTagName('li');
	for (var i=0;i<cible_ssmenu.length;i++)	
	{
		if (cible_ssmenu[i].className=='sousmenu')
		{
			cible_ssmenu[i].onmouseout = function(){ssmenu_disparait(this);};
			cible_ssmenu[i].onmouseover = function(){ssmenu_apparait(this);};
		}
	}
	for (var i=0;i<cible_rubssmenu.length;i++)
	{
		if(cible_rubssmenu[i].className=='avecssmenu')
		{
			cible_rubssmenu[i].onmouseover = function(){ssmenu_apparait(this.childNodes[2]);};
			cible_rubssmenu[i].onmouseout = function(){ssmenu_disparait(this.childNodes[2]);};
		}
	}
}
// -----------------------------------------------------------------------------
function ssmenu_disparait(cible)
{
	cible.style.display="none";
}
// -----------------------------------------------------------------------------
function ssmenu_apparait(cible)
{
	cible.style.display="block";
}