rbf_showOrHideSection not working

Hello Pavel, I have followed the instructions on Page 28 of Chapter 7. However, my section that I want hidden based on the selection of the picklist is not working. Here is my code that I am using on the Edit Page (script component): function customizeEdit() { var sectionID = rbf_getSectionIdByTitle("401k Information"); var code = rbf_getPicklistCode("401k"); rbf_showOrHideSection(sectionID , code=="YES"); } I have customizedEdit(); on the onload of the edit page and the onchange of the field 401k. I am not sure why this is not working??? The tutorial is pretty straight forward. I am using v4.06