Backlogでチケット番号を抜き出す

gistfile1.txt

var p_key = document.getElementsByClassName("p_key"),p_keyList;
for(var i=0;p_key.length>i;i++){
  p_keyList+=p_key[i].getElementsByTagName("a")[0].innerText+"\b";
  p_keyList+=p_key[i].nextSibling.nextSibling.getElementsByClassName("title-inner")[0].innerText+"\n";
}
console.log(p_keyList);