function prepareImageArray(){
        $gallery_json       = new stdClass();
        $gallery_json->meta = new stdClass();
        $gallery_json->meta->order = Array();
        $gallery_json->meta->orderPointer = 0;
        $image_info = Array();
        foreach($this->images as $image){
            $tmp = $image;
            $f = File::getByID($image['fID']);
            $tmp['f'] = $f;
            // Get approved version of file
            $fID=$image['fID'];
            $thisFile=File::getById($fID);
            $fv=$thisFile->getApprovedVersion();
            // Get BTS URL Attribute
            $ak=FileAttributeKey::getByHandle('bts_image_url');
            $attrVal=$fv->getAttribute($ak->getAttributeKeyHandle());
            $keyName=$ak->getAttributeKeyName();
            $tmp['bts_img_url']=$attrVal;
            //////////////////////////////////////////////////////////////////
            // Add file caption to tmp array
            $tmp['caption'] = (array_key_exists('caption', $tmp) && $tmp['caption']) ? $tmp['caption'] : $f->getTitle();
            //Create a JSON entity from the file path
            $gallery_json->{$tmp['fID']}->src       = $f->getRelativePath();
            //Create a JSON entity from the file caption
            $gallery_json->{$tmp['fID']}->caption   = $tmp['caption'];
            // Add BTS URL to JSON
            $gallery_json->{$tmp['fID']}->bts_img_url   = $tmp['bts_img_url'];
            //var_dump($gallery_json);
            $gallery_json->meta->order[]=$tmp['fID'];
            $image_info[] = $tmp;
        }
        $jse = Loader::helper('json');
        $this->set('gallery_json', $jse->encode($gallery_json));
        $this->set('images', $image_info);
    }