Pas de difference entre :
Screen.width|height et screen.availWidth|availHeightpour la commande window.open

window.open("", "", "toolbar=yes,directories=no,scrollbars=yes,menubar=yes,status=no,
location=no,resizable=yes,width="+screen.width+",height="+screen.height+",top=0,left=0")

window.open("", "", "toolbar=yes,directories=no,scrollbars=yes,menubar=yes,status=no,
location=no,resizable=yes,width="+screen.availWidth+",height="+screen.availHeight+",top=0,left=0")