fun! s:OpenURLLine(f,e)
  if ! exists('g:browser_cmd')
    if has('mac')
      let g:browser_cmd = 'open -a Chromium %s'
    else
      let g:browser_cmd = 'firefox %s'
    endif
  endif

  let l:cnt = 0
  if a:f == a:e
      cal system( printf(g:browser_cmd,  url ) )
      let l:cnt += 1
  else
    for i in range(a:f,a:e)
      let url = getline(i)
      if url !~ '^http'
        next
      endif

      redraw
      echo "Opening '" . url . "'.."
      sleep 300m
      cal system( printf(g:browser_cmd,  url ) )
      let l:cnt += 1
    endfor
  endif
  redraw
  echo "Done. " . l:cnt . " Items opened."
endf
com! -range OpenURLLine :cal s:OpenURLLine( <line1> , <line2> )