code: function hasRightSideBr() {
  				var walker = new TreeWalker(container, parentBlock), node;
  
  				while (node = walker.current()) {
  					if (node.nodeName == 'BR') {
  						return true;
  					}
  
  					node = walker.next();
  				}
  			}
docs: Walks the parent block to the right and look for BR elements