Adding a popup context menu to words in a Flex TextArea

I'm tryi开发者_C百科ng to figure out how to add a popup context menu to words/groups of words in a flex. Basically I'm trying to achieve something similar to the red underline MS Word adds underneath misspelled words.

I'd also like to be able to add controls other than menu items to this context menu (checkboxes, lists, buttons, etc...).

Thanks for your help!