JS Panoramio Image Grab SRC V4

<script>
var inn=0;
var out=prompt('Enter #:');
while(inn!=out){
var gen=Math.floor(Math.random()*99999999);
inn++;
var url="https://mw2.google.com/mw-panoramio/photos/medium/"+gen+".jpg";
var url1="<a href="+url+"></a>";
document.writeln('<img src="'+url+'"></img><br>');
document.writeln('<a href='+url+'>'+url+'</a><p>');
}
</script>