MediaWiki:RefToolbarLoader.js

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if (( mw.config.get('wgAction') == 'edit' || mw.config.get('wgAction') == 'submit' ) && ( typeof refToolbarInstalled == 'undefined' )) {
	importScript('MediaWiki:RefToolbarBase.js');
	if( typeof $.wikiEditor != 'undefined' && typeof $.wikiEditor.modules.dialogs != 'undefined' ) {
		importScript('MediaWiki:RefToolbar.js');
	} else if( typeof $.wikiEditor != 'undefined' ) {
		importScript('MediaWiki:RefToolbarNoDialogs.js');
	} else {
		importScript('MediaWiki:RefToolbarLegacy.js');
	}
	refToolbarInstalled = true;
}