twitter posting from webpage button (in onestep)

I implemented twitter posting button on my web site using twitter codeigniter library.) using that button, I can posting my writing to twitter. (like social sharing button) It works well.

To posting a writing, there are two steps like below.

1. getting user allow/disallow page

2. message and posting page

but, some kinds of social sharing button skip the first step. they let the user post his writings ju开发者_运维技巧st 1 page step. (write message and push post button, that's all)

So, my question is how can I skip the first step so that users just write message push posting button in one page step?

Use Twitter's "Tweet" button:

http://twitter.com/about/resources/tweetbutton

If you're logged in you don't need to authorize an app before tweeting

https://twitter.com/about/resources/tweetbutton

That is a button that allows users to share pages without having to "Approve" your website.