How to display input controls to save data

I am creating web page with similar functionality as the discussion section under each article in codeproject. For example when a person wrote a comment about an article,  it creates a hyper link. This can be clicked by another person to add his/her own comment and so on. The problem is that clicking on the hyperlink opens another page, with input controls such as a text box for subject, a text box for content and several check boxes for different options, where once could enter a reply. I would like these controls be part of a webcontrol or a form and open within the page of the article itself and when the save button clicked, it posts the values to be saved, and the controls disappear. I would appreciate if you please suggest the best way to proceed.
Thanks
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