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I want to reuse some CSS class of a web page into a new div element that I have added . I am using Greasemonkey to redesign the page.

How can I add bar1 to style myDiv ?

Original Div: 

  & lt; Div id = "bar1" class = "bar1" & gt;   
  New div:   
  var myDiv = document.createElement ('div');    
 
 
  myDiv.className = 'bar1';   
 or  
  myDiv.className = document.getElementById ('Bar 1'). ClassName;

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