add and refine thunderball results page

helpers/template.go

@@ -0,0 +1,25 @@
+package helpers
+
+import (
+	"html/template"
+)
+
+func TemplateFuncs() template.FuncMap {
+	return template.FuncMap{
+		"plus1": func(i int) int { return i + 1 },
+		"minus1": func(i int) int {
+			if i > 1 {
+				return i - 1
+			}
+			return 0
+		},
+		"mul": func(a, b int) int { return a * b },
+		"add": func(a, b int) int { return a + b },
+		"min": func(a, b int) int {
+			if a < b {
+				return a
+			}
+			return b
+		},
+	}
+}