jQuery: adding tooltips to parts of text in a textarea, and removing them when user starts editing it

I am planning on buildin开发者_如何转开发g a tool that will provide suggestions to the user on his text, similar to a spellchecker.

I would like to:

• highlight problematic text
• remove the highlighting when the user starts editing it.

How would I do this in jquery? Highlighting problematic text looks easy, even adding tooltips with a lib like qtip2, but how would I remove that highlighting as soon as the user starts to edit the text?

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If you just want to remove something assign a handler to textarea's change, focus, mousedown, keydown events