Flex :: Flexbuilder - Password Validator Using RegExp?

I have seen several examples in Flex for passowrd validator using RegExp. But every where the validation is happend for single validation.

I have a requirement, like password validations like

- At least one Upper case letter

- At least one numeric character

- At least one special character such as @, #, $, etc.

- At least one Lower case letter

- password lenght minimum 6 digits

- password cannot be same as user name

I have the code only for checking the password is valid or not . check the below code.

MXML CODE

<mx:FormItem label="Username:" x="83" y="96" width="66">
</mx:FormItem>
<mx:FormItem label="Password:" x="88" y="123" width="61">

[Code]....