function listen_artist(url) {
    window.open(url,"popup1","menubar=no,location=no,resizable=no,scrollbars=no,status=no,width=273,height=115,top=250, left=250");
}

function bio(url) {
    window.open(url,"popup2","menubar=no,location=no,resizable=no,scrollbars=yes,status=no,width=700,height=600,top=100, left=250");
}