Fckeditor, ресайз при загрузке картинок

/**
 * htContent - HTML-код
 * dir - каталог с изображениями
 */
function correctImageSize($htContent, $dir)
{
    $doc = new DOMDocument();
    $doc->loadHTML($htContent);
    
    $imgs = $doc->getElementsByTagName('img');
    foreach ($imgs as $elImg) {
        if (! $elImg->hasAttribute('src')) {
            continue;
        }
        $attrWidth  = INF;
        $attrHeight = INF;
        if ($elImg->hasAttribute('style')) {
            $style = $elImg->getAttribute('style');
            $rules = explode(';', $style);
            foreach ($rules as $rule) {
                @list($name, $value) = explode(':', $rule);
                if (! $name || ! $value) {
                    continue;
                }
                if (strCaseCmp($name, 'width') == 0) {
                    $attrWidth = intval($value);
                }
                if (strCaseCmp($name, 'height') == 0) {
                    $attrHeight = intval($value);
                }
            }
        }
        if ($elImg->hasAttribute('width')) {
            $attrWidth = $elImg->getAttribute('width');
        }
        if ($elImg->hasAttribute('height')) {
            $attrHeight = $elImg->getAttribute('height');
        }

        $path = $dir . '/' . baseName($elImg->getAttribute('src'));
        if (! file_exists($path)) {
            continue;
        }
        
        list($realWidth, $realHeight, $type) = getimagesize($path);
        switch ($type) {
        case 1:
            $srcPic = imageCreateFromGIF($path);
            $end = 'gif';
            break;
        case 2:
            $srcPic = imageCreateFromJPEG($path);
            $end = 'jpeg';
            break;
        case 3:
            $srcPic = imageCreateFromPNG($path);
            $end = 'png';
            break;
        default:
            trigger_error('Unsupported image type');
        }
        $width  = min($attrWidth,  $realWidth);
        $height = min($attrHeight, $realHeight);
        $dstPic = imageCreateTrueColor($width, $height);
        imageCopyResampled($dstPic, $srcPic, 0, 0, 0, 0,
            $width, $height, $realWidth, $realHeight);
        $func = 'image' . $end;
        $func($dstPic, $path);
    }
}