code: function toggle(main, alt) {
  		var mw = core.base();
  		mw.main = main;
  		mw.alt = (alt || function () {
  
  		});
  		mw.active = mw.main;
  		mw.enabled = true;
  		mw.swap = function () {
  			mw.active = (mw.active !== mw.main ? mw.main : mw.alt);
  		};
  		mw.writeln = function (line) {
  			if (!mw.enabled) {
  				return;
  			}
  			if (mw.enabled) {
  				mw.active.writeln(line);
  			}
  		};
  		mw.toString = function () {
  			return '<miniwrite-toggle>';
  		};
  		return mw;
  	}
docs: - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - control output