Load Content into a javascript Variable

Hello guys. I very new to spry and I need some help.
How can I load content (text) from a html page(actually I
want to get a result from a dynamic php script) into a javascript
variable?
I saw the fragments example in wich spry loads some html
fragment into a div, etc... but I need the result text to be stored
in a variable so I can test the result before update the div.
Thanks in advance...

I think this function updateContent shoud have a parameter to
tell if we want the content to be loaded inside a container or a
variable. It would be very helpful to integrate php/mysql
validation scripts to forms. I wanted to test if a username was
already in the database when the user choose the username in the
form, so I made a custom function and aplied it to the textbox
validation widget. Its working great, but it would be better if I
didnt have to create invisible divs to receive the response from
the php script I made.
Thanks anyway. Spry is a great product.

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well sorry there fanmap - but I don't think you're going to
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