function disparaitre_message () {
	$("#notification").fadeOut("slow");
}


var W3CDOM = (document.createElement && document.getElementsByTagName);

var menuMouseOvers = new Array();
var menuMouseOuts = new Array();

window.onload = initmenu;

function initmenu()
{
	if (!W3CDOM) return;
	var nav = document.getElementById('menuprincipal');
	var imgs = nav.getElementsByTagName('img');
	for (var i=0;i<imgs.length;i++)
	{
		imgs[i].onmouseover = mouseGoesOver;
		imgs[i].onmouseout = mouseGoesOut;
		var suffix = imgs[i].src.substring(imgs[i].src.lastIndexOf('.'));
		menuMouseOuts[i] = new Image();
		menuMouseOuts[i].src = imgs[i].src;
		menuMouseOvers[i] = new Image();
		menuMouseOvers[i].src = imgs[i].src.substring(0,imgs[i].src.lastIndexOf('.')) + "_over" + suffix;
		imgs[i].number = i;
	}
}

function mouseGoesOver()
{
	this.src = menuMouseOvers[this.number].src;
}

function mouseGoesOut()
{
	this.src = menuMouseOuts[this.number].src;
}