Twitter button - tips

Creating a twitter button to show up on your site  using code here - https://dev.twitter.com/docs/tweet-button ???

Please follow these simple tips:

1. Text - use htmlspecialchars to encode/ escape your text which go in as "text" in the button.
2. If you are using a shortening service - make sure you use both the url and the counturl parameters.
3. If the url parameter doesnt have http:// in it, twitter will not show it up - so check that out.