Compare and save on Hobart hotels

var ListPage = { maxTries: 20, interval: 0, xhrRequests: [], update: function(url, count, callback){ var fingerprint = "&t=" + (new Date().getTime()); var reqcount = "&req_count=" + count; this.loader("on"); var self = this; var req = new XMLHttpRequest(); req.open("GET", url + fingerprint + reqcount, true); ListPage.xhrRequests.push(req); req.onreadystatechange = function() { if (req.readyState === 4 && (req.status === 200 || req.status === 202)) { eval(req.responseText); self.loader("off"); if (req.status === 200 || req.status !== 202 ) callback(req.status); if (req.status === 202) { if (count < self.maxTries) { setTimeout(function(){ListPage.update(url, ++count, callback)}, self.interval); self.interval += 100; } else { callback(req.status); } } } }; req.send(null); }, loader: function(status) { var spinnerD = document.querySelector('.spinnersD'); var spinnerM = document.querySelector('.spinnersM'); if (spinnerD && spinnerM) { if (status === "on") { spinnerD.className = "spinnersD shownow"; spinnerM.className = "spinnersM shownow"; } else { // hide spinnerD.className = "spinnersD"; spinnerM.className = "spinnersM"; } } }, ajax: function(url, callback) { this.update(url, 1, callback); } }; ListPage.ajax("https://www.skyscanner.ca/trip/hotels/hotel_list_page?action=index&clean_path=hobart-australia&controller=topics&country_code=&current_user_id=&filters=&id=2000000000086&klass_name=Region&list_type=hotels&nearby=false&order=asc&path=hobart-australia%2Fhotels&place=2000000000086&place_type=City&place_type=region&region=2000000000086&sort=best_value", function(status){ if (status === 200) { HotelRates.ajax(); } }); var HotelRates = { hotels: "hotel_ids%5B%5D=5000000387922&hotel_ids%5B%5D=5000000066362&hotel_ids%5B%5D=5000000202843&hotel_ids%5B%5D=5000000054145&hotel_ids%5B%5D=5000000159124&hotel_ids%5B%5D=5000000082790&hotel_ids%5B%5D=5000003925895&hotel_ids%5B%5D=5000000090509&hotel_ids%5B%5D=5000000039787&hotel_ids%5B%5D=5000000285174&hotel_ids%5B%5D=5000000381126&hotel_ids%5B%5D=5000000294696&hotel_ids%5B%5D=5000000420055&hotel_ids%5B%5D=5000000147589&hotel_ids%5B%5D=5000003968406&hotel_ids%5B%5D=5000000258312&hotel_ids%5B%5D=5000000140312&hotel_ids%5B%5D=5000000058346&hotel_ids%5B%5D=5000000165738&hotel_ids%5B%5D=5000000371911&hotel_ids%5B%5D=5000000041669&hotel_ids%5B%5D=5000000229110&hotel_ids%5B%5D=5000000151922&hotel_ids%5B%5D=5000000371235&hotel_ids%5B%5D=5000000417730&hotel_ids%5B%5D=5000000003535&hotel_ids%5B%5D=5000000147635&hotel_ids%5B%5D=5000000413365&hotel_ids%5B%5D=5000000202883&hotel_ids%5B%5D=5000000171772", ajaxCalls: function(tryIndex) { if (this.hotels) { ListPage.update("https://www.skyscanner.ca/trip/hotels/hotel_rates_list?bookable_only=&country_code=&current_user_id=&locale=en&region=2000000000086" + "&" + this.hotels, tryIndex, function(){ var placeholder = document.querySelectorAll('.metasearch_featured .placeholder'); for (var i = 0; i < placeholder.length; i++) { placeholder[i].style.display='none'; } }); } }, ajax: function() { this.ajaxCalls(1); }, singleAjax: function() { this.ajaxCalls(ListPage.maxTries); } };