Follow button does not work most of the sometimes

[ABHIJEEEEEEET]

I am using below code in my web app for twitter follow button:

Follow@directdialogs

But alert(“FOLLOW!”) is not getting triggered in below cases:

1. Already logged out of twitter & not following @ABHIJEEEEEEET
2. Already logged out of twitter & following @ABHIJEEEEEEET
3. Already logged in to twitter & following @ABHIJEEEEEEET

[niall]