Automate HTML "View source" Generation ( similar to a browser)

As part of our project requirement, we need to save 'view source' ( i.e. the source which generated by HTML browser) to a file for each web page.

I am looking for any tool which can do internally and generate the view source similar to Chrome / Safari. and the page have some dynamic JS which runs after page loads.

Any one suggest any tools which can generate view source automatically after applying onload JS functions to a file ? any one come across such automation?

Please help.

via Kiran