Add missing file.

Gemfile

@@ -1,8 +1,8 @@
 source "https://rubygems.org"
 
 gem 'github-pages', group: :jekyll_plugins
-gem 'jekyll', '~> 3.8.7'
-#gem 'jekyll', '~> 3.9'
+#gem 'jekyll', '~> 3.8.7'
+gem 'jekyll', '~> 3.9'
 gem 'rexml'
 
 gem "webrick", "~> 1.8"

_includes/vhv-scripts/html/getChecksum.js

@@ -0,0 +1,24 @@
+{% comment %}
+//
+// Programmer:    Craig Stuart Sapp <[email protected]>
+// Creation Date: Tue Jul  2 21:02:53 CEST 2024
+// Last Modified: Tue Jul  2 21:02:56 CEST 2024
+// Filename:      _includes/vhv-scripts/html/getChecksum.js
+// Included in:   _includes/vhv-scripts/html/main.js
+// Syntax:        HTML; ECMAScript 6; Jekyll/Liquid
+// vim:           ts=3:nowrap
+//
+// Description:   Get simple checksum for avoiding retypesetting SCORE files.
+//
+{% endcomment %}
+
+function getChecksum(humdrum) {
+	let sum = 0;
+	for (let i=0; i<humdrum.length; i++) {
+		sum += humdrum.charCodeAt(i);
+	}
+	return sum;
+}
+
+
+