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diff --git a/www/wiki/skins/Vector/vector.js b/www/wiki/skins/Vector/vector.js
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+++ b/www/wiki/skins/Vector/vector.js
@@ -0,0 +1,93 @@
+/**
+ * Vector-specific scripts
+ */
+jQuery( function ( $ ) {
+
+	/**
+	 * Collapsible tabs
+	 */
+	var $cactions = $( '#p-cactions' ),
+		$tabContainer = $( '#p-views ul' ),
+		rAF = window.requestAnimationFrame || setTimeout,
+		// Avoid forced style calculation during page load
+		initialCactionsWidth = function () {
+			var width = $cactions.width();
+			initialCactionsWidth = function () {
+				return width;
+			};
+			return width;
+		};
+
+	rAF( initialCactionsWidth );
+
+	/**
+	 * Focus search input at the very end
+	 */
+	$( '#searchInput' ).attr( 'tabindex', $( document ).lastTabIndex() + 1 );
+
+	// Bind callback functions to animate our drop down menu in and out
+	// and then call the collapsibleTabs function on the menu
+	$tabContainer
+		.on( 'beforeTabCollapse', function () {
+			// If the dropdown was hidden, show it
+			if ( $cactions.hasClass( 'emptyPortlet' ) ) {
+				$cactions.removeClass( 'emptyPortlet' );
+				$cactions.find( 'h3' )
+					.css( 'width', '1px' )
+					.animate( { width: initialCactionsWidth() }, 'normal' );
+			}
+		} )
+		.on( 'beforeTabExpand', function () {
+			// If we're removing the last child node right now, hide the dropdown
+			if ( $cactions.find( 'li' ).length === 1 ) {
+				$cactions.find( 'h3' ).animate( { width: '1px' }, 'normal', function () {
+					$( this ).attr( 'style', '' )
+						.parent().addClass( 'emptyPortlet' );
+				} );
+			}
+		} )
+		.collapsibleTabs( {
+			expandCondition: function ( eleWidth ) {
+				// (This looks a bit awkward because we're doing expensive queries as late as possible.)
+
+				var distance = $.collapsibleTabs.calculateTabDistance();
+				// If there are at least eleWidth + 1 pixels of free space, expand.
+				// We add 1 because .width() will truncate fractional values but .offset() will not.
+				if ( distance >= eleWidth + 1 ) {
+					return true;
+				} else {
+					// Maybe we can still expand? Account for the width of the "Actions" dropdown if the
+					// expansion would hide it.
+					if ( $cactions.find( 'li' ).length === 1 ) {
+						return distance >= eleWidth + 1 - initialCactionsWidth();
+					} else {
+						return false;
+					}
+				}
+			},
+			collapseCondition: function () {
+				var collapsibleWidth = 0;
+
+				// (This looks a bit awkward because we're doing expensive queries as late as possible.)
+				// TODO The dropdown itself should probably "fold" to just the down-arrow (hiding the text)
+				// if it can't fit on the line?
+
+				// Never collapse if there is no overlap.
+				if ( $.collapsibleTabs.calculateTabDistance() >= 0 ) {
+					return false;
+				}
+
+				// Always collapse if the "More" button is already shown.
+				if ( !$cactions.hasClass( 'emptyPortlet' ) ) {
+					return true;
+				}
+
+				$tabContainer.children( 'li.collapsible' ).each( function ( index, element ) {
+					collapsibleWidth += $( element ).width();
+					// Stop this possibly expensive loop the moment the condition is met.
+					return !( collapsibleWidth > initialCactionsWidth() );
+				} );
+				return collapsibleWidth > initialCactionsWidth();
+			}
+		} );
+} );