Flickr images

I have my Full Size Image width set for 800. The problem happens when a flickr image does not have a size with the suffix "_b.jpg" even though the orginal size "_o.jpg" is good enough to be scaled down. Because of this the image displays (This Photo is Currently Unavailable)

I am sure this "_b.jpg" is hardcoded somewhere in the module, but it first needs to see what sizes are available before automatically appending "_b.jpg"

**Update: I look into the code, the problem is in the function _image_ncck_flickr_guess_size
its is guessing instead of using the flickr.photos.getSizes

**Update: Ok, after figuring it out I have redone the function image_ncck_flickr_image_url to completely work off of the flickr.photos.getSizes instead of getInfo and changed the _image_ncck_flickr_guess_size to be the numbers in the ['sizes'] array instead of the s,t,m,o,b

The new functions to replace the old ones:

function image_ncck_flickr_image_url($code, $width, $height, $formatter = NULL, $field = NULL, $item = NULL, $node = NULL) {
  if ($code) {
    $size = _image_ncck_flickr_guess_size($width, $height);
    $getsize = image_ncck_flickr_request('flickr.photos.getSizes', array('photo_id' => $code));
    $url = $getsize['sizes']['size'][$size]['source'];
  }
  return $url;
}

function _image_ncck_flickr_guess_size($width, $height) {
  $max = max($width, $height);
  foreach (array('0' => 75, '1' => 100, '2' => 240, '3' => 500, '4' => 1024) as $size => $value) {
    if ($max <= $value) {
      return $size;
    }
  }
  return '5';
}

http://www.flickr.com/services/api/flickr.photos.getSizes.html

The code is going to need some cleaning, ex: removing all the url constructing functions, (the getSize spits out the url by itself)

Future Problem
if the size is over 1024 but only has 5 elements in the array -> I would just count($getsize['sizes']['size']) and see if it is 5 than original is now [4] instead of [5], I have had no problems without this counting, but just thinking ahead.