gistfile1.txt

// When doing smart SEO advanced you will check for the existence of a URL parameter named bvrrp. 
// If that parameter exists, you will check to make sure that file exists on disk, and then include it.  
// For example, if the product id was 6789 and page 2 was being requested, the parameter bvrrp would be 1230-en_us/reviews/product/2/6789.htm.

// If that parameter doesn't exist, you will default to including page 1. 

// Here is an example function you might write to handle this logic. 
function getRRSmartSEOFile() {
    $SEOParam = getURLParameter('bvrrp');
    $SEOFile = '/path/to/smartseo/' + $SEOParam;
    $defaultSEOFile = '/path/to/smartseo/1230-en_us/reviews/product/1/' + productID + '.htm';
    if ( hasValue($SEOParam) && fileExists($SEOFile) ) {
        return $SEOFile;
    } else if ( fileExists($defaultSEOFile) ){
        return $defaultSEOFile;
    } else {
        return null;
    }
}

// then on the actual product detail page you would do something like this
<div id="BVRRContainer">
    { if getRRSmartSEOFile() != null then insert stringReplaceURLs(getRRSmartSEOFile()) }
</div>