Move some go stuff into a shared 'util'.

1 files changed, 5 insertions, 4 deletions

diff --git a/colordate.js b/colordate.js
index a228eb5..22be25b 100644
--- a/colordate.js
+++ b/colordate.js
@@ -3,7 +3,8 @@
 	var now = Date.now();
 	var oneday = 1000*60*60*24;
 
-	var mapTo = function(iRange, oRange, iPoint) {
+	// maps from a point on iRange to a point on oRange
+	var mapRange = function(iRange, oRange, iPoint) {
 		var pct = (iPoint - iRange[0])/(iRange[1]-iRange[0]);
 		if (pct < 0) {
 			pct = 0;
@@ -21,17 +22,17 @@
 
 	var date2color = function(t) {
 		var max = 0xF3;
-		var red = mapTo([now-oneday, now-(oneday/2)],
+		var red = mapRange([now-oneday, now-(oneday/2)],
 				[max, 0],
 				t);
-		var green = mapTo([now-(oneday/2), now],
+		var green = mapRange([now-(oneday/2), now],
 				[0, max],
 				t);
 		return rgb(max-green, max-red, max-green-red);
 	};
 
 	var main = function() {
-		document.querySelectorAll('time.colordate').forEach(function(time) {
+		document.querySelectorAll('time.daily').forEach(function(time) {
 			time.style.backgroundColor = date2color(Date.parse(time.dateTime));
 		});
 	};