Event after entering inline edit mode

I have a JQuery plugin called NumberInput that you call on an input element and it allows only numbers to be entered. I would like to apply it to a field in inline edit mode. I noticed that the following events get fired when entering inline edit mode, but none of them are suitable for applying my plugin:

• inlineEdit & inlineMultiEdit - the input element doesn't exist yet
• preOpen & open - the parameters supplied contain no information, so I can't locate the field