How to clear the text box and By dragging changing of fields

Question

Hello Members,

 

Hope you had a great weekeend!!

 

I am trying to add the First name and  last name, By clicking on add the txtboxes need to be empty..
In the below jquery grid, I need to change the order of rows...

Here I am attaching the code, Can any one help me here..!!

 

Thannk you in advance!!