jquery dynamic addition, the method of reducing input form

HTML code such as the following

JS code such as the following
<script>    var max_fields      = 5;//maximum input boxes allowed    var wrapper          = $ (". Input_fields_wrap") ; Fields Wrapper    var Add_button    = (". Add_field_button");//add button ID        var x = 1;//initlal text Box Count
   $ (Add_button). Click (function (e) {//on Add input button click        e.preventdefault ();        if (x < max_fields) {//max input box allowed            x + +,//text box increment            $ (wrapper). Append (' <tr style= ' " ><td></td><td><button  class= "Remove_field btn" >Del</button></td> </tr> '); Add input Box            }       });         $ (wrapper). On ("click", ". Remove_field", function (e) {//user-click on the Remove Text        e.preventdefault (); $ (this). Closest (' tr '). Remove (); x--;    })  </script>


 
jquery dynamic addition, the method of reducing input form