<!-- 

var win;

function nw(f, w, h)
{
   var sx, sy, x, y;
   sx=screen.width;
   sy=screen.height;
   
   x=(sx-w)/2;
   y=(sy-h)/2;
   
   if (win) { win.close() }
	win=window.open(f, '', 'width=' + w + ',height=' + h + ',location=no,toolbar=no,menubar=no,scrollbars=no,resizable=no,left='+x+',top='+y);	
}

function nw2(f, w, h)
{
   var sx, sy, x, y;
   sx=screen.width;
   sy=screen.height;
   
   x=(sx-w)/2;
   y=(sy-h)/2;
   
   if (win) { win.close() }
	win=window.open(f, '', 'width=' + w + ',height=' + h + ',location=no,toolbar=no,menubar=no,scrollbars=yes,resizable=no,left='+x+',top='+y);	
}
//-->