diff --git a/Thanks.php b/Thanks.php
index 7db58aea..23ed7f79 100644
--- a/Thanks.php
+++ b/Thanks.php
@@ -129,6 +129,13 @@ $wgResourceModules['ext.thanks.mobilediff'] = array(
 	'localBasePath' => __DIR__ . '/modules',
 	'remoteExtPath' => 'Thanks/modules',
 );
+$wgResourceModules['ext.thanks.jquery.findWithParent'] = array(
+	'scripts' => array(
+		'jquery.findWithParent.js',
+	),
+	'localBasePath' => __DIR__ . '/modules',
+	'remoteExtPath' => 'Thanks/modules',
+);
 $wgResourceModules['ext.thanks.flowthank'] = array(
 	'scripts' => array(
 		'ext.thanks.flowthank.js',
@@ -141,6 +148,7 @@ $wgResourceModules['ext.thanks.flowthank'] = array(
 	'dependencies' => array(
 		'mediawiki.jqueryMsg',
 		'mediawiki.api',
+		'ext.thanks.jquery.findWithParent',
 		'ext.thanks',
 	),
 	'localBasePath' => __DIR__ . '/modules',
diff --git a/modules/jquery.findWithParent.js b/modules/jquery.findWithParent.js
new file mode 100644
index 00000000..99011a81
--- /dev/null
+++ b/modules/jquery.findWithParent.js
@@ -0,0 +1,57 @@
+( function ( $ ) {
+	/** @class jQuery */
+
+	/**
+	 * Gives support to find parent elements using .closest with less-than selector syntax.
+	 *
+	 *     $.findWithParent( $div, "< html div < body" ); // find closest parent of $div "html", find child "div" of it, find closest parent "body" of that, return "body"
+	 *     $( '#foo' ).findWithParent( '.bar < .baz' ); // find child ".bar" of "#foo", return closest parent ".baz" from there
+	 *
+	 * @method findWithParent
+	 * @param {jQuery|HTMLElement|string} $context
+	 * @param {string} selector
+	 * @return {jQuery}
+	 */
+	function jQueryFindWithParent( $context, selector ) {
+		var matches;
+
+		$context = $( $context );
+		selector = $.trim( selector );
+
+		while ( selector && ( matches = selector.match( /(.*?(?:^|[>\s+~]))(<\s*[^>\s+~]+)(.*?)$/ ) ) ) {
+			if ( $.trim( matches[ 1 ] ) ) {
+				$context = $context.find( matches[ 1 ] );
+			}
+			if ( $.trim( matches[ 2 ] ) ) {
+				$context = $context.closest( matches[ 2 ].substr( 1 ) );
+			}
+			selector = $.trim( matches[ 3 ] );
+		}
+
+		if ( selector ) {
+			$context = $context.find( selector );
+		}
+
+		return $context;
+	}
+
+	$.findWithParent = jQueryFindWithParent;
+
+	/** @class jQuery.fn */
+	/**
+	 * @param {string} selector
+	 * @return {jQuery}
+	 * @see jQuery#findWithParent
+	 */
+	$.fn.findWithParent = function ( selector ) {
+		var selectors = selector.split( ',' ),
+			$elements = $(),
+			self = this;
+
+		$.each( selectors, function ( i, selector ) {
+			$elements = $elements.add( jQueryFindWithParent( self, selector ) );
+		} );
+
+		return $elements;
+	};
+}( jQuery ) );