tumblrHighRes

var posts = $$('#posts li');
var tumb = ".image_thumbnail";
$each(posts,function(el){
    var img = el.getElement('.image_thumbnail');
    var hash = (img.src+'').split('o1_')[0].split('tumblr.com/')[1];
    var postId = el.id.replace('post','');
    var host = el.getElement('.post_avatar').href;
    var path = host+'photo/1280/'+postId+'/1/'+hash;
    img.src = path;
    img.style.width = img.style.height = 'auto'
    });