function popup(page,largeur,hauteur){
	var top=(screen.height-hauteur)/2-20;
	var left=(screen.width-largeur)/2;
	options = 'toolbar=no,directories=no,status=no,scrollbars=yes,resize=no,menubar=no,location=no';
	window.open(page,"","top="+top+",left="+left+",width="+largeur+",height="+hauteur+","+options);
}


function mention(){
	popup("mentions.html",400,600);	
}