diff -r aaefac2d08a3 -r 22d28dd9c041 www/js/global.js
--- a/www/js/global.js	Sat Dec 08 17:30:09 2018 +0100
+++ b/www/js/global.js	Sun Dec 09 17:29:51 2018 +0100
@@ -106,6 +106,18 @@
 
 
 /*
+ * Alcohol By Volume
+ */
+function abvol(og, fg) {
+
+	if ((4.749804 - fg) != 0)
+		return 486.8693 * (og - fg) / (4.749804 - fg);
+	return 0;
+}
+
+
+
+/*
  * Kleurwerking naar SRM
  */
 function kw_to_srm(colormethod, c) {
@@ -187,7 +199,7 @@
 		ibu = Math.round((mass * (alpha * 100) * boilfactor * 0.1) / (liters * (1 + sgfactor)) * 10) / 10;
 	}
 
-	console.log("toIBU("+Use+","+Form+","+SG+","+Volume+","+Amount+","+Boiltime+","+Alpha+","+Method+"):"+ibu+" fm:"+fmoment+" pf:"+pfactor);
+//	console.log("toIBU("+Use+","+Form+","+SG+","+Volume+","+Amount+","+Boiltime+","+Alpha+","+Method+"):"+ibu+" fm:"+fmoment+" pf:"+pfactor);
 	return ibu;
 }