diff --git a/wp-content/themes/twentyfourteen/js/featured-content-admin.js b/wp-content/themes/twentyfourteen/js/featured-content-admin.js
index 7283296389..4385fb5fc7 100644
--- a/wp-content/themes/twentyfourteen/js/featured-content-admin.js
+++ b/wp-content/themes/twentyfourteen/js/featured-content-admin.js
@@ -1,3 +1,4 @@
+/* global ajaxurl:true */
 jQuery( function( $ ) {
 	$( '#customize-control-featured-content-tag-name input' ).suggest( ajaxurl + '?action=ajax-tag-search&tax=post_tag', { delay: 500, minchars: 2 } );
 } );
diff --git a/wp-content/themes/twentyfourteen/js/functions.js b/wp-content/themes/twentyfourteen/js/functions.js
index 1527d02107..67c858e0eb 100644
--- a/wp-content/themes/twentyfourteen/js/functions.js
+++ b/wp-content/themes/twentyfourteen/js/functions.js
@@ -66,15 +66,16 @@
 		 * image and we are not on mobile.
 		 */
 		 if ( _window.width() > 781 ) {
-			var mastheadHeight = $( '#masthead' ).height();
+			var mastheadHeight = $( '#masthead' ).height(),
+				toolbarOffset, mastheadOffset;
 
 			if ( mastheadHeight > 48 ) {
 				body.removeClass( 'masthead-fixed' );
 			}
 
 			if ( body.is( '.header-image' ) ) {
-				var toolbarOffset  = body.is( '.admin-bar' ) ? $( '#wpadminbar' ).height() : 0,
-				    mastheadOffset = $( '#masthead' ).offset().top - toolbarOffset;
+				toolbarOffset  = body.is( '.admin-bar' ) ? $( '#wpadminbar' ).height() : 0;
+				mastheadOffset = $( '#masthead' ).offset().top - toolbarOffset;
 
 				_window.on( 'scroll.twentyfourteen', function() {
 					if ( ( window.scrollY > mastheadOffset ) && ( mastheadHeight < 49 ) ) {
diff --git a/wp-content/themes/twentyfourteen/js/slider.js b/wp-content/themes/twentyfourteen/js/slider.js
index 8133223795..e2740869c2 100644
--- a/wp-content/themes/twentyfourteen/js/slider.js
+++ b/wp-content/themes/twentyfourteen/js/slider.js
@@ -1,3 +1,4 @@
+/* global DocumentTouch:true,setImmediate:true,featuredSliderDefaults:true,MSGesture:true */
 /*
  * Twenty Fourteen Featured Content Slider
  *
@@ -8,18 +9,19 @@
 ( function( $ ) {
 	// FeaturedSlider: object instance.
 	$.featuredslider = function( el, options ) {
-		var slider = $( el );
-
-		// Make variables public.
-		slider.vars = $.extend( {}, $.featuredslider.defaults, options );
-
-		var namespace = slider.vars.namespace,
+		var slider = $( el ),
 			msGesture = window.navigator && window.navigator.msPointerEnabled && window.MSGesture,
 			touch = ( ( 'ontouchstart' in window ) || msGesture || window.DocumentTouch && document instanceof DocumentTouch ), // MSFT specific.
 			eventType = 'click touchend MSPointerUp',
 			watchedEvent = '',
 			watchedEventClearTimer,
-			methods = {};
+			methods = {},
+			namespace;
+
+		// Make variables public.
+		slider.vars = $.extend( {}, $.featuredslider.defaults, options );
+
+		namespace = slider.vars.namespace,
 
 		// Store a reference to the slider object.
 		$.data( el, 'featuredslider', slider );
@@ -40,8 +42,10 @@
 				// TOUCH
 				slider.transitions = ( function() {
 					var obj = document.createElement( 'div' ),
-						props = ['perspectiveProperty', 'WebkitPerspective', 'MozPerspective', 'OPerspective', 'msPerspective'];
-					for ( var i in props ) {
+						props = ['perspectiveProperty', 'WebkitPerspective', 'MozPerspective', 'OPerspective', 'msPerspective'],
+						i;
+
+					for ( i in props ) {
 						if ( obj.style[ props[i] ] !== undefined ) {
 							slider.pfx = props[i].replace( 'Perspective', '' ).toLowerCase();
 							slider.prop = '-' + slider.pfx + '-transform';
@@ -69,9 +73,15 @@
 				// KEYBOARD
 				if ( $( slider.containerSelector ).length === 1 ) {
 					$( document ).bind( 'keyup', function( event ) {
-						var keycode = event.keyCode;
+						var keycode = event.keyCode,
+							target = false;
 						if ( ! slider.animating && ( keycode === 39 || keycode === 37 ) ) {
-							var target = ( keycode === 39 ) ? slider.getTarget( 'next' ) : ( keycode === 37 ) ? slider.getTarget( 'prev' ) : false;
+							if (keycode === 39){
+								target = slider.getTarget( 'next' );
+							} else if (keycode === 37) {
+								target = slider.getTarget( 'prev' );
+							}
+
 							slider.featureAnimate( target );
 						}
 					} );
@@ -95,12 +105,13 @@
 					var type = 'control-paging',
 						j = 1,
 						item,
-						slide;
+						slide,
+						i;
 
 					slider.controlNavScaffold = $( '<ol class="' + namespace + 'control-nav ' + namespace + type + '"></ol>' );
 
 					if ( slider.pagingCount > 1 ) {
-						for ( var i = 0; i < slider.pagingCount; i++ ) {
+						for ( i = 0; i < slider.pagingCount; i++ ) {
 							slide = slider.slides.eq( i );
 							item = '<a>' + j + '</a>';
 							slider.controlNavScaffold.append( '<li>' + item + '</li>' );
@@ -293,13 +304,15 @@
 
 				function onMSGestureChange( e ) {
 					e.stopPropagation();
-					var slider = e.target._slider;
+					var slider = e.target._slider,
+						transX,
+						transY;
 					if ( ! slider ) {
 						return;
 					}
 
-					var transX = -e.translationX,
-						transY = -e.translationY;
+					transX = -e.translationX,
+					transY = -e.translationY;
 
 					// Accumulate translations.
 					accDx = accDx + transX;
@@ -324,14 +337,16 @@
 
 				function onMSGestureEnd( e ) {
 					e.stopPropagation();
-					var slider = e.target._slider;
+					var slider = e.target._slider,
+						updateDx,
+						target;
 					if ( ! slider ) {
 						return;
 					}
 
 					if ( slider.animatingTo === slider.currentSlide && ! scrolling && dx !== null ) {
-						var updateDx = dx,
-						    target = ( updateDx > 0 ) ? slider.getTarget( 'next' ) : slider.getTarget( 'prev' );
+						updateDx = dx,
+						target = ( updateDx > 0 ) ? slider.getTarget( 'next' ) : slider.getTarget( 'prev' );
 
 						slider.featureAnimate( target );
 					}
@@ -440,8 +455,7 @@
 
 		slider.setProps = function( pos, special, dur ) {
 			var target = ( function() {
-				var posCheck = ( pos ) ? pos : slider.itemW * slider.animatingTo,
-					posCalc = ( function() {
+				var posCalc = ( function() {
 						switch ( special ) {
 							case 'setTotal': return ( slider.currentSlide + slider.cloneOffset ) * pos;
 							case 'setTouch': return pos;