Jquery code

Jquery code

I have the following java script code. This java script code, onclick of the button creates clone of newdiv and appends on my_div, with id= null. Please provide me with the corresponding jquery code.

function addWork(){
var obj= ''; 
        document.getElementById("newdiv").style.display ='block';
obj = document.getElementById("newdiv").cloneNode(true);        
        obj.id ='';
        document.getElementById("newdiv").style.display ='none';
        
        document.getElementById("my_div").appendChild(obj); 
        
return false;        
}