ar existing_cover = document.querySelector("#detailcover")
    el.nextElementSibling.innerText = el.naturalWidth + 'x' + el.naturalHeight
    if (existing_cover.naturalHeight*existing_cover.naturalWidth >  el.naturalWidth * el.naturalHeight){
      el.nextElementSibling.classList.add("smaller")
    } else if (existing_cover.naturalHeight*existing_cover.naturalWidth < el.naturalWidth * el.naturalHeight){
      el.nextElementSibling.classList.add("larger")
    }
  }
  $(document).on('click','.meta_identifier 