Google Reader Auto Change Start Page

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// ==UserScript==
// @id             googlereaderautochangestartpage@http://twitter.com/xulapp
// @name           Google Reader Auto Change Start Page
// @version        1.0
// @namespace      http://twitter.com/xulapp
// @author         xulapp
// @description    
// @include        http://www.google.tld/reader/view/*
// @include        https://www.google.tld/reader/view/*
// @run-at         document-start
// ==/UserScript==


(function googleReaderAutoChangeStartPage() {
	var VAR = '_STREAM_LIST_UNREAD_COUNTS';
	var lastValue;

	Object.defineProperty(unsafeWindow, VAR, {
		get: function() lastValue,
		set: function(v) {
			if (v !== null) {
				lastValue = v;
				return;
			}

			delete unsafeWindow[VAR];
			unsafeWindow[VAR] = null;

			var all;
			lastValue.unreadcounts.every(function(item) {
				if (!/\/reading-list$/.test(item.id))
					return true;

				all = item;
			});
			if (!all)
				return;

			if (all.count < 10)
				history.pushState(null, '', '#stream/' + encodeURIComponent(all.id));
		},
		configurable: true,
		enumerable: true,
	});
})();