Download images from 500px

download500px.js

// Bookmarklet
javascript:(function() {
    var a = document.createElement('a'), img_src = document.getElementsByClassName( 'the_photo' )[0].src;
    a.href = img_src;
    a.download = document.getElementsByClassName('name')[0].innerText + ' by ' + document.getElementsByClassName('author_name')[0].innerText + '.' + img_src.split('.').pop();
    document.body.appendChild(a);
    a.click();
})();