about <param tag

[dragospd.dragospd.yahoo.com]

Could someone explain the mechanics behind the param tag? I read the docs but I didn't understand very well.

Suppose that I put a

<param name='x' value='#{myBean.x}' />

in a .page.xml file. In this page I enter with a GET that contains the x parameter with a value. The value of myBean.x is updated with the value taken from the url param. After that a POST from this page is made without any redirection. myBean.x is updated or not? from where? Then another POST will go to a second page with a  That page have also a  tag. After a POST from the second page with a redirect to the first one do I have the myBean.x updated with the same value?

Thanks

[pmuir]

In the update model phase the GET parameter is applied to the model, in the render response phase the model value is extracted and set as a GET parameter.