Override layout or view file through plugin

[Rajesh Mayara]

Hi

My client has some application which has done on rails 2.3. I need to implement some features in that application.But i need not to change anything from original application. I need to add the features through plugin. Actually i need to change theme and some view page.Theme should be effect to whole application including login page.View file should override on specific view page.How can i develop this thing.Please help me. I am new to RoR.

Thanks
Mayara Rajesh

[Colin Law]

Start by working right through a good tutorial such as
railstutorial.org, which is free to use online.

Colin

[Rajesh Mayara]

Thanks for your suggestion. But i didn't find anything from that.So how can i override a application view,application controller. Please give some example regarding this using  a plugin.Thanks in advance.