Than you PPK you are right! For scrollbars, now it's ok. BUT how to hide http address in the title bar? here is the code: window.open('http://pc-lanciau/images/clip.asp?fermer="no"','toto','menubar= no,resizable=no,location=no,scrollbars=no,width=570,height=430') (i changes the first "no" between " cause in my script it is un example of string not a boolean) thank you for help Félix