In Drupal 7 I'm facing one problem, I'm going to implement a comment system in that way that it should work as chatting systems. I've a content type Article, at the end there is a comment box where users can leave comments.
If I add a comment to the article it should be showed in every user's browser if they are viewing it, and at the same time they can debate/talk about that article without refreshing the page.
It will be real time commenting.
We have solved this issue with two modules
Provides ajax comments to Drupal sites (commenting like a social networking sites: Facebook, Google+, vk.com etc).
Block Refresh allows an administrator to configure a block to refresh it's content via 3 different methods: automatically via a timer (eg every 30 seconds) , manually via a 'refresh' link, and once on page load.
You can view the real sample at http://beinghuman.org/.
The Ajax Comments module AJAXifies comments - works well and no need to refresh page.
Ajax Comments
Provides ajax comments to Drupal sites (commenting like a social networking sites: Facebook, Google+, vk.com etc).
There is a patch in ajax comments module to allow for time-based refreshing, but it is not yet committed: https://drupal.org/node/401288
That would allow the usage of just one module alone to achieve the desired functionality.
I wander how you embedded the comments in the block, as I tried both commentsblock and node_comment_block but then they both didn't refresh using block_refresh.
