Hello, i want to replace 'download' to 'download_prev'
ex:

<a href=''><img src='/download-0-756a8f457f516a948b89/00990Nature.jpg'/></a><br/>

i want to make:

<a href=''><img src='/download_prev-0-756a8f457f516a948b89/00990Nature.jpg'/></a><br/>

please only simple js if you can bcoz i will use for opera mini users and no php