make anchor by week day

make_anchor_by_week_day.html

<a href="#" id="goto">Link</a>

<script>
/* For http://www.v2ex.com/t/36493
 * DEMO: http://jsfiddle.net/gaomd/asD58/3/
 * by Mengdi Gao 2012
 * Dedicated to the public domain
 */
(function(doc) {
	"use strict";
	var a = doc.getElementById("goto");
	var d = new Date();
	var day = d.getDay();
	var hr = d.getHours();
	var pre = "http://www.example.com/";
	var page = "";
	var post = ".html";
	var getDayPostfix = function(hr) {
		var name = "";
		if (8 <= hr && hr < 12) {
			name = "morning";
		} else if (12 <= hr && hr < 14) {
			name = "noon";
		} else if (14 <= hr && hr < 18) {
			name = "afternoon";
		} else if (18 <= hr && hr < 23) {
			name = "evening";
		} else {
			name = "night";
		}
		return name;
	};
	var map = ["sunday", "monday", "tuesday", "wednesday", "thursday", "friday", "saturday"];

	// 0 for sunday and 1 for monday and so forth.
	if (d === 0) {
		page = "weekend";
	} else {
		page = map[day] + "_" + getDayPostfix(hr);
	}

	a.href = pre + page + post;
})(document);
</script>