if (document.images) {
	bdateson = new Image();
	bdateson.src = "img/bt_date_r.gif";
	bdatesoff = new Image();
	bdatesoff.src = "img/px.gif";
	bbioon = new Image();
	bbioon.src = "img/bt_bio_r.gif";
	bbiooff = new Image();
	bbiooff.src = "img/px.gif";
	bnewson = new Image();
	bnewson.src = "img/bt_news_r.gif";
	bnewsoff = new Image();
	bnewsoff.src = "img/px.gif";
	bproon = new Image();
	bproon.src = "img/bt_espacepro_r.gif";
	bprooff = new Image();
	bprooff.src = "img/px.gif";
	bmp3on = new Image();
	bmp3on.src = "img/bt_mp3_r.gif";
	bmp3off = new Image();
	bmp3off.src = "img/px.gif";
	blienson = new Image();
	blienson.src = "img/bt_liens_r.gif";
	bliensoff = new Image();
	bliensoff.src = "img/px.gif";
	bcontacton = new Image();
	bcontacton.src = "img/bt_contact_r.gif";
	bcontactoff = new Image();
	bcontactoff.src = "img/px.gif";	
}
function imgOn(imgName) {
        if (document.images) {
            document[imgName].src = eval(imgName + "on.src");
        }
}
function imgOff(imgName) {
        if (document.images) {
            document[imgName].src = eval(imgName + "off.src");
        }
}
function messager() {
	alert("Site en cours de construction, merci de votre patience");
}