I copied this script from a friend:

<SCRIPT LANGUAGE="JAVASCRIPT">

function CaricaFoto(img){
foto1= new Image();
foto1.src=(img);
Controlla(img);
}
function Controlla(img){
if((foto1.width!=0)&&(foto1.height!=0)){
viewFoto(img);
}
else{
funzione="Controlla('"+img+"')";
intervallo=setTimeout(funzione,20);
}
}
function viewFoto(img){
largh=foto1.width+20;
altez=foto1.height+20;
stringa="width="+largh+",height="+altez;
finestra=window.open(img,"",stringa);
}
</SCRIPT>


How can I get the window that opens on the last line to be scrollable and resizable?