A #javascript #bookmarklet : Find which javascript Framework is used on the current page

whatJS.js

(function () {
	if ( typeof( bm_popin ) == 'undefined' ) {
		alert( 'Please update your Bookmarklet here: http://zilliox.me/bm' );
	} else {
		// Instanciate a generic bookmarklet popin
		var popin = new bm_popin( 1534085 );
		popin.title( 'What JS ?' );
		var no_framework = true;

		// jQuery : http://jquery.com/
		if ( typeof ( jQuery )	!== 'undefined' ) {
			no_framework = false;
			popin.add_text( 'jQuery ' + jQuery(document).jquery );

			// jQuery UI : http://jqueryui.com/
			if ( typeof ( jQuery.ui ) !== 'undefined' ) {
				popin.add_text( 'jQuery UI ' + jQuery.ui.version );
			}

			// markItUp! : http://markitup.jaysalvat.com
			if ( typeof ( jQuery.markItUp ) !== 'undefined' ) {
				popin.add_text( 'jQuery markItUp! ' );
			}
		}

		// MooTools : http://mootools.net/
		if ( typeof ( MooTools )  !== 'undefined' ) {
			no_framework = false;
			popin.add_text( 'MooTools ' + MooTools.version );
		}

		// Prototype : http://www.prototypejs.org/
		if ( typeof ( Prototype ) !== 'undefined' ) {
			no_framework = false;
			popin.add_text( 'Prototype ' + Prototype.Version );
		}

		// Underscore.js : http://documentcloud.github.com/underscore/
		if ( typeof ( _ )		 !== 'undefined' ) {
			no_framework = false;
			popin.add_text( 'Underscore ' + _.VERSION );
		}

		// YUI 2 : http://developer.yahoo.com/yui/2/
		if ( typeof ( YAHOO )	 !== 'undefined' ) {
			no_framework = false;
			popin.add_text( 'YUI ' + YAHOO.VERSION );
		}

		// YUI 3 : http://yuilibrary.com/
		if ( typeof ( YUI )	 !== 'undefined' ) {
			no_framework = false;
			popin.add_text( 'YUI ' + YUI.version );
		}

		// Dojo : http://dojotoolkit.org/
		if ( typeof ( dojo )	  !== 'undefined' ) {
			no_framework = false;
			popin.add_text( 'Dojo ' + dojo.version.major + '.' + dojo.version.minor + '.' + dojo.version.patch );
		}

		// Backbone.js : http://documentcloud.github.com/backbone/
		if ( typeof ( Backbone )  !== 'undefined' ) {
			no_framework = false;
			popin.add_text( 'Backbone ' + Backbone.VERSION );
		}

		// Popcorn : http://popcornjs.org/
		if ( typeof ( Popcorn )   !== 'undefined' ) {
			no_framework = false;
			popin.add_text( 'Popcorn.js ' + Popcorn.version );
		}

		// RequireJs : http://requirejs.org/
		if ( typeof ( requirejs ) !== 'undefined' ) {
			no_framework = false;
			popin.add_text( 'RequireJs ' + requirejs.version );
		}

		// yepnope.js : http://yepnopejs.com/
		if ( typeof ( yepnope )   !== 'undefined' ) {
			no_framework = false;
			popin.add_text( 'yepnope' );
		}

		// No Framework
		if ( no_framework ) {
			popin.add_text( 'No JS framework found' );
		}
	}
})();