How to capture randomly generated String

Hi,

I have an application where every time the password of a particular user will get change upon some operation. It generates a random string.

How to capture this randomly generated string and store it in some variable so that i can log in with this password(randomly generated string )

i import my test cases to HTML and will be adding java script snippets in between.

Thanks in advance
KSC

Can help you if you elaborate your question.