Data attribute namespacing

I set a temporary namespace attribute on the 'chardinJs' jQuery data. It gets overwritten every time the function is called. I just wanted to not have to pass around the namespace variable everywhere. Let me know if you wanted me to go a different approach.

Also, from your comment in the thread I got the notion that I should change the data*-intro attributes to be data*-text attributes, so I did that while I was in there changing things up. Now that I think about it, it's possible you mistyped this attribute in your reply. Please let me know if that is the case too!