diff --git a/docs/en/designers/language-custom-functions/language-function-html-select-date.xml b/docs/en/designers/language-custom-functions/language-function-html-select-date.xml
index f1b39aad..5d320013 100644
--- a/docs/en/designers/language-custom-functions/language-function-html-select-date.xml
+++ b/docs/en/designers/language-custom-functions/language-function-html-select-date.xml
@@ -199,15 +199,10 @@
null
If supplied then the first element of the year's select-box has this
value as it's label and "" as it's value. This is useful to make the
- select-box read "Please select a year" for example.
-
-
- day_empty
- string
- No
- null
- If supplied then the first element of the day's select-box has this
- value as it's label and "" as it's value.
+ select-box read "Please select a year" for example.
+
+ Note that you can use values like "-MM-DD" as time-attribute to indicate
+ an unselected year.
month_empty
@@ -215,7 +210,19 @@
No
null
If supplied then the first element of the month's select-box has this
- value as it's label and "" as it's value. .
+ value as it's label and "" as it's value. .
+ Note that you can use values like "YYYY--DD" as time-attribute to indicate
+ an unselected month.
+
+
+ day_empty
+ string
+ No
+ null
+ If supplied then the first element of the day's select-box has this
+ value as it's label and "" as it's value.
+ Note that you can use values like "YYYY-MM-" as time-attribute to indicate
+ an unselected day.