use Gitlab API

  return(document.documentElement.scrollTop||document.body.scrollTop);

}

PB.open=function(n){

  var t="/gitlab/Kanbun/ud-kanbun/raw/master/Pulleyblank/";

  var s;

  if(n<10)

    s="Pulleyblank00"+n+".txt";

  else if(n<100)

    s="Pulleyblank0"+n+".txt";

  else

    s="Pulleyblank"+n+".txt";

  PB.req.open("GET",t+s);

  PB.filename=t+s;

  PB.anchor="#"+s.substring(11,14);

  var s="/gitlab/api/v4/projects/Kanbun%2Fud%2Dkanbun/repository/files/Pulleyblank%2FPulleyblank";

  var t=("000"+n).slice(-3);

  var r="%2Etxt/raw?ref=master";

  PB.req.open("GET",s+t+r);

  PB.filename=s+t+r;

  PB.anchor="#"+t;

  PB.req.setRequestHeader("Pragma","no-cache");

  PB.req.setRequestHeader("Cache-Control","no-cache");

  PB.req.setRequestHeader("If-Modified-Since","Sat, 01 Jan 2000 00:00:00 GMT");

  var p;

  if(PB.req.status==200){

    p=document.createElement("b");

    p.innerHTML="<a href='editor-kanbun.html#"+PB.filename+"' name='"+PB.anchor+"'>"+PB.anchor+"</a>";

    p.innerHTML="<a href='editor-kanbun.html#"+PB.filename+"' name='"+PB.anchor+"' target='_blank'>"+PB.anchor+"</a>";

    document.body.appendChild(p);

    p=document.createElement("pre");

    p.textContent=PB.req.responseText