docs: function order_cohort(in_brackets){	    
  	    // Push into global cohort list list.
  	    for( var i = 0; i < in_brackets.length; i++ ){
  		var bracket_item = in_brackets[i];
  		//
  		//_kvetch(' order_cohort: i: ' + i);
  		//_kvetch(' order_cohort: lvl: ' + bracket_item.level);
  		cohort_list[bracket_item.level - 1].push(bracket_item);
  		// Drill down.
  		if( bracket_item.brackets.length > 0 ){
  		    //_kvetch(' order_cohort: down: ' +
  		    //        bracket_item.brackets.length);
  		    order_cohort(bracket_item.brackets);
  		}
  	    }
  	}