See the below example.

http://jsfiddle.net/zf51hb46/1/

What I am doing is enter some numbers in any of the textbox it will become *. Mouseover to the textbox it will show the balloon with numbers you entered.

select all the *s and press  the backspace it will remove all the *'s. Mouse over to the textbox again it will show popup that textbox has previous.It suppose not to show the balloon. I did the code with condition but it still showing.

Is there anyway we can hide the balloon based on condition?