title: How to add new text field when button is clicked
body: <p>I want to create a form for my client. My client require to create a dynamic for him.
  Suppose, I want to insert 1 record in main table of mysql, and record multiple records in secondary table which has reference key of main table. I don't know how many records against the main table, it maybe one at time or multiple records at time. I want to do it with single form. If client click add more button it show another text field to insert more data.
  how I can do it ?????</p>