is there any reason why the presence wont work? form1.Page1.Sec1Fields.ddlTopic::change - (JavaScript, client)
var newSelection = xfa.event.newText;
if(newSelection == "Other"){
xfa.host.messageBox("visible");
Page1.Sec1Fields.txtOtherTopic.presence = "visible";
} else {
xfa.host.m...