function expo(page) {

var myWidth = 700;
var myHeight = 470;
var cnavigator=window.open(page,"expo",'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=auto,resizable=yes,width=' + myWidth + ',height=' + myHeight + ',innerWidth='+ myWidth + ',innerHeight='+ myHeight+'');
cnavigator.moveTo( ( screen.availWidth - myWidth ) / 2 , (screen.availHeight - myHeight ) /2 );

}

function fiche_artiste(page) {

var myWidth = 800;
var myHeight = 600;
var cnavigator=window.open(page,"fiche_artiste",'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=auto,resizable=yes,width=' + myWidth + ',height=' + myHeight + ',innerWidth='+ myWidth + ',innerHeight='+ myHeight+'');
cnavigator.moveTo( ( screen.availWidth - myWidth ) / 2 , (screen.availHeight - myHeight ) /2 );

}

function prix_susse(page) {

var myWidth = 275;
var myHeight = 600;
var cnavigator=window.open(page,"prix_susse",'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=auto,resizable=yes,width=' + myWidth + ',height=' + myHeight + ',innerWidth='+ myWidth + ',innerHeight='+ myHeight+'');
cnavigator.moveTo( ( screen.availWidth - myWidth ) / 2 , (screen.availHeight - myHeight ) /2 );

}