File upload target _blank

Is there a way to configure target="_blank" for all file upload links when using textile in the MarkItUp editor?

I was reviewing the image_upload.js in the Markitup folder and I did find the following code, but I wasn't sure how to correctly add target="_blank".

// FILES switch(language.toLowerCase()) { case 'textile': var s_text = r; if (alt) s_text = alt; output = '"'+s_text+'":'+r; break;

Thank you, Ryan