function PopUpMentions(url,largeur,hauteur,options) {
    
    var haut=(screen.height-hauteur)/2;
    var Gauche=(screen.width-largeur)/2;
    
    window.open(url,'basque_bondissant',"top="+haut+",left="+Gauche+",width="+largeur+",height="+hauteur+","+options);

}