turn TextBox to ******* on blur

Hi and thanx for taking a look,

I want to turn the text in some textboxes to stars (**********) when leaving it (onBlur).

I created 2 textboxes, one holding the value and the other holding stars. What I did was onTextchanged I set the visability of the value textbox to false and the star textbox to true.........

I tried setting the value field to password but everytime the page refreshed it was cleared.

What I want to do is onBlur of the value textbox set its visibility to false and the stars to true.......and conversely, onFocus of the star field set its visibility false and the value texxtbox to true....

 
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