function open_popup(page,hauteur,largeur)
{ 
window.open(page,"Popup","status=yes,scrollbars=yes,resizable=yes,height="+hauteur+",width="+largeur+",top=50,left=50"); 
} 

open_popup('http://www.123-traffic.net/popup_defaut.php?url=http://ps3.blog.mongenie.com',600,600);