masonry add to existing grid some element (that was hidden) cloned

js.js

(function($) {
  "use strict";
  $(document).ready(function (){
  	// push custom widgetized calendar widget (hidden inside footer page)
  	// to masonry layout grid
		var elem = $('.calmasonry').clone()
		// clone the classes for layout of the box
		elem.addClass('isotope-entry col span_1_of_4').removeClass('hidden')
		$('#blog-entries').masonry().append( elem ).masonry( 'appended', elem ).masonry()  		
  	
	});
})(jQuery);