Unusual jQuery tag selection

I want to add an element of type jQuery / Javascript selector in my application. The idea is that the user is asked to say 50 tags inside the text field, but instead of just selecting the tag word and deleting it, next to it is X, which removes the tag from the list, and there is a text field in which the new word can to be added. Hope this makes sense.

I would like to ask if there is an open source turnkey solution?