Flickr allsizesX

// ==UserScript==
// @name           Flickr allsizesX
// @description    Adds all the links needed right under the flickr image. 
// @version        20111205
// @namespace   
// @include        http://www.flickr.com/photos/*
// @website        http://userscripts.org/scripts/show/103073
// @creator        ofsahin
// ==/UserScript==

var sizes = [
 { caption: 'Square', suffix: 's', size: 'sq' },
 { caption: 'Thumbnail', suffix: 't', size: 't' },
 { caption: 'Small', suffix: 'm', size: 's' },
 { caption: 'Medium 500', suffix: '', size: 'm' },
 { caption: 'Medium 640', suffix: 'z', size: 'z' },
 { caption: 'Large', suffix: 'b', size: 'l' },
 { caption: 'Original', suffix: 'o', size: 'o' }
];

function wget(url)
{
 try {
  var xmlHttp = new XMLHttpRequest();
  xmlHttp.open("GET", url, false);
  xmlHttp.send(null);
  return xmlHttp.responseText;
 } catch (e) {
  return "error: " + e;
 }
}

function imgurl(user, pid, size)
{
 var url = 'http://www.flickr.com/photos/' + user + '/' + pid + '/sizes/' + size;
 var txt = wget(url);
 var ms = txt.match(/src="(http:\/\/farm.*\.staticflickr.com\/[^"]*)"/);
 if (ms)
  return ms[1];
 else
  return 'about:blank';
}

function appendLink(elm, href, text)
{
 var a = document.createElement('a');
 a.style.margin = '2px';
 a.style.padding = '2px';
 a.href = href;
 a.innerHTML = text;
 elm.appendChild(a);
}

function substitute()
{ 
 var elms = document.getElementsByClassName('photo-div');
 var photoDiv = elms[0];
 var img = photoDiv.children[0];

 var ms = img.src.match(/^(.*)(_.)?\.jpg/);
 if (!ms)
  console.error('img.ms is null!');
 var imgBase = ms[1];

 var url = window.location + '';
 var ms = url.split('/');
 var user = ms[4];
 var pid = ms[5];

 var links = document.createElement('div');
 links.setAttribute('class','Paginator');
 
 appendLink(links, img.src, 'Current');

 for (var i in sizes) {
  var a = document.createElement('a');
  var href = imgurl(user, pid, sizes[i].size);
  appendLink(links, href, sizes[i].caption + ' ');
 }

 photoDiv.appendChild(links);
}

try {
 substitute();
} catch (e) {
 console.error('error: ' + e);
}