function win(fileName){
 if (navigator.appName == "Microsoft Internet Explorer"){ // better be ie6 at least
 	myfile = window.open('','','channelmode=1,status=no,toolbar=no,menubar=no,location=no,resizeable=no');
 	myfile.location.href = fileName;
 	myfile.focus();
	}else { // i.e. if Firefox
	var sw = screen.availWidth;
	var sh = screen.availHeight;
	myfile = window.open('','','width='+sw+',height='+sh+',status=no,toolbar=no,menubar=no,location=no,resizeable=no');
	myfile.moveTo(0,0);
	myfile.location.href = fileName;
	myfile.focus();
}
}