questo?

<form name="formAll" method="post" action="gis.jsp" target="popup" onSubmit="window.open('','popup','fullscreen=yes', 'scrollbars=no','toolbars=no','resizable=no')">

o questo?

<form name="formAll" method="post" action="gis.jsp" target="popup" onSubmit="window.open('','popup','fullscreen=yes; scrollbars=no; toolbars=no; resizable=no;')">

prova...