questo nell'head:

<script language="javascript">

if (top.frames.length!=0)
top.location=self.document.location;
self.moveTo(0,0)
self.resizeTo(screen.availWidth,screen.availHeight
)

var win= null;
function openit(mypage,myname,w,h,scroll){
var winl = (screen.width-w)/2;
var wint = (screen.height-h)/2;
var settings ='height='+h+',';
settings +='width='+w+',';
settings +='top='+wint+',';
settings +='left='+winl+',';
settings +='scrollbars='+scroll+',';
settings +='resizable=no';
win=window.open(mypage,myname,settings);
if(parseInt(navigator.appVersion) >= 4){win.window.focus();}
}
</script>

questo per richiamarla:

[img]component/img/dmlog.jpg[/img]</div></td>

potrebbe essere un problema nel frameset riguardante le misure?