See my example:
http://jsfiddle.net/ujvHe/
When you click the +add button second time, then it makes 4 row with the fields, and when you press it third time it makes 8 rowfields.
I want to only append ONE row with those fields, when you click +add.
How to fix this?
thats becuase you clone cloned markup again and again, try this:
http://jsfiddle.net/ujvHe/1/