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diff --git a/ui/effects/effect-pulsate.js b/ui/effects/effect-pulsate.js
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+/*!
+ * jQuery UI Effects Pulsate @VERSION
+ * http://jqueryui.com
+ *
+ * Copyright jQuery Foundation and other contributors
+ * Released under the MIT license.
+ * http://jquery.org/license
+ */
+
+//>>label: Pulsate Effect
+//>>group: Effects
+//>>description: Pulsates an element n times by changing the opacity to zero and back.
+//>>docs: http://api.jqueryui.com/pulsate-effect/
+//>>demos: http://jqueryui.com/effect/
+
+( function( factory ) {
+	if ( typeof define === "function" && define.amd ) {
+
+		// AMD. Register as an anonymous module.
+		define( [
+			"jquery",
+			"../version",
+			"../effect"
+		], factory );
+	} else {
+
+		// Browser globals
+		factory( jQuery );
+	}
+}( function( $ ) {
+
+return $.effects.define( "pulsate", "show", function( options, done ) {
+	var element = $( this ),
+		mode = options.mode,
+		show = mode === "show",
+		hide = mode === "hide",
+		showhide = show || hide,
+
+		// Showing or hiding leaves off the "last" animation
+		anims = ( ( options.times || 5 ) * 2 ) + ( showhide ? 1 : 0 ),
+		duration = options.duration / anims,
+		animateTo = 0,
+		i = 1,
+		queuelen = element.queue().length;
+
+	if ( show || !element.is( ":visible" ) ) {
+		element.css( "opacity", 0 ).show();
+		animateTo = 1;
+	}
+
+	// Anims - 1 opacity "toggles"
+	for ( ; i < anims; i++ ) {
+		element.animate( { opacity: animateTo }, duration, options.easing );
+		animateTo = 1 - animateTo;
+	}
+
+	element.animate( { opacity: animateTo }, duration, options.easing );
+
+	element.queue( done );
+
+	$.effects.unshift( element, queuelen, anims + 1 );
+} );
+
+} ) );