scraper.html

<script src="https://code.jquery.com/jquery-2.1.3.js"></script>
<script>
	// Get all the days we want.
	var endDate = new Date(2050, 0 , 1);
	var daysOfYear = [];
	for (var d = new Date(2015, 0, 1); d <= endDate; d.setDate(d.getDate() + 1)) {
	    daysOfYear.push(new Date(d));
	}

	var colorToLuckMap = {
		'#FF0000': 1, // red is lucky
		'#0000FF': 0, // blue is neutral
		'#000000': -1 // black is bad luck
	};

	var periodsPerYear = {};

	var getPeriodsInDay = function(year, month, day, callback) {
		$.post('http://www.chinesefortunecalendar.com/TDB/Luckyhours.asp', {
			SunYear: year, 
			SunMonth: month, 
			SunDay: day
		}, function(data) {
			data = data.replace(/(href|src|img)/g, 'bullshit');
			// d is the raw string response of html data.
			// create a temporary node to work with the data.
			var rootNode = document.createElement('div');
			rootNode.innerHTML += data;
			var table = rootNode.querySelectorAll('table')[2];
			var rows = table.querySelectorAll('tr');
			// should have 4 columns per row, representing a 2-hour period each.
			var allPeriodsPerDay = [];
			Array.prototype.forEach.call(rows, function(row) {
				var columns = row.querySelectorAll('td');
				Array.prototype.forEach.call(columns, function(column) {
					var color = column.querySelector('font').getAttribute('color');
					allPeriodsPerDay.push(colorToLuckMap[color]);
				});
			});
			delete rootNode;
			var key = [year, month, day].join('-');
			periodsPerYear[key] = allPeriodsPerDay;
			console.log(key + ' --> '+ allPeriodsPerDay);
			callback();
		});
	};

	$(function() {
		var getWaitPeriod = function() {
			return Math.floor(Math.random() * 10000);
		};
		var currentCount = 0;
		daysOfYear.forEach(function(date) {
			setTimeout(function() {
				console.log(date.getFullYear(), date.getMonth() + 1, date.getDate());
				getPeriodsInDay(date.getFullYear(), date.getMonth() + 1, date.getDate(), function() {
						++currentCount;
						if (currentCount === daysOfYear.length - 1) {
							// all done here...
							document.body.innerHTML += '<pre>' +
								JSON.stringify(periodsPerYear).replace(/],/g, "],\n");
								+ '</pre>';
						}
				});
			}, getWaitPeriod());
		});
	});
</script>