Textbox not getting value

hi Everyone,i have a web page in which we are using JSF technology, Now the problem is, i am having a two radio buttons upon clicking one radio button i should go to backend and fetch one value and display it in a text box, Can anyone give me sample code for this operation?
[288 byte] By [bgkkishorea] at [2007-11-26 13:07:23]
# 1
http://www.coreservlets.com/JSF-Tutorial/Start by reading a tutorial. What you are asking for is all basic stuff.
aniseeda at 2007-7-7 17:17:29 > top of Java-index,Java Essentials,Java Programming...
# 2

sorry for the trouble but we are using AjaxAnywhere in our webpage(XHTML) which is causing some problems. in our webpage we are saving the state of backing bean, before we click the radio button, but after the form loads again the jsf is reloading the same backing bean which was saved previously

bgkkishorea at 2007-7-7 17:17:29 > top of Java-index,Java Essentials,Java Programming...