Bentley Map example "Webstore" question

The "Webstore Store" example contains a "richtext" dialog item labeled "Review" that appears to be displaying unicode when expecting multibyte text. I've looked in the source and found the defintion for the "Review EditBox". When using xfmDialog_setDialogItemParam() some of the dialogItem expected entries are not easy to figure out. For example, the ItemType: I can't find a list of acceptable item types. In MDL, there is no "richTextBox", so how does one know that it's a valid parameter? I didn't see valid types in the help files, or I wasn't looking in the correct location. Also, what needs to change to make the "review" text display properly - change the "richTextBox" to a "textBox"?

Thanks,

Bruce