// ==UserScript==
// @name           Endless Summer on dsbd
// @namespace      http://www.tumblr.com/
// @description    random next link on tumblr dashboard
// @include        http://www.tumblr.com/dashboard/1000
// @include        http://www.tumblr.com/show/*/1000
// @require        http://gist.github.com/3242.txt
// @require        http://gist.github.com/198443.txt
// @version        0.0.3.9.9.9.9.9.9.9.9.9
// ==/UserScript==
// requires AutoPagerize http://userscripts.org/scripts/show/8551 by swdyh
// using $X() http://gist.github.com/3242 by os0x
// using createDocumentFromString http://gist.github.com/198443 by os0x
// notice: put this script ABOVE AutoPagerize
// endlesSummeRize fire on http://www.tumblr.com/dashboard/1000 or http://www.tumblr.com/show/photos/by/everyone/1000 or ...

(function(){
var dsbd = 'http://www.tumblr.com/dashboard';
var siteinfo = {};
siteinfo.nextLink = 'id("next_page_link")/self::a';

function getId(info){
  var opt = {
    method: 'GET',
    url: dsbd,
    headers : {
    },
    onload: function(res) {
      var d = createDocumentFromString(res.responseText);
      var i = $X(info.nextLink, d);
      if(i.length){
        i = i[0]; 
      } else return;
      GM_setValue('postno', i.href.match(/.*\/\d+\/(\d+)/)[1].toString()); 
    },
  }
  GM_xmlhttpRequest(opt);
}

function endlessSummer(doc, url, info){
  var a = $X(info.nextLink, doc);
  if (a.length){
		a = a[0];
	} else return;
  a.href = location.pathname + '?offset=' + Math.floor(Math.random() * GM_getValue('postno', 377777777));
  a.textContent = 'Searching for The Endless Summer \u2192 ';
  a.style.background='none repeat scroll 0 0 #4AADF0'
}

getId(siteinfo);
endlessSummer(document, location.href, siteinfo);

setTimeout(function(){
  if (window.AutoPagerize && window.AutoPagerize.addDocumentFilter)
	window.AutoPagerize.addDocumentFilter(endlessSummer);
},0);
})();