Re-orginze the plugin as instantiated classes

admin.css

@@ -14,3 +14,16 @@
 .fixed .column-expires {
 	width: 12%;
 }
+
+.nav-tab-content {
+	display: none;
+}
+.form-table th small {
+	display: block;
+	clear: both;
+	color: #999;
+}
+.form-table td label {
+	display: block;
+	clear:both;
+}

admin.js

@@ -0,0 +1,20 @@
+jQuery(function($){
+
+	// Admin page tabs
+	var $tabs = $('.nav-tab-wrapper'),
+	$panels = $('.nav-tab-content'),
+	currentHash = window.location.hash;
+
+	$tabs.on('click', 'a', function(e){
+		var hash = $(this).attr('href').replace('#tab-', '#tab-content-'); // prevents page scrolling if hash is present
+		$panels.hide().filter(hash).show();
+		$tabs.find('a').removeClass('nav-tab-active').filter($(this)).addClass('nav-tab-active');
+	});
+	$tabs.find( currentHash ? 'a[href="'+currentHash+'"]' : ':first').trigger('click');
+
+	// Fix input-inside-label glitch
+	$panels.on('click', 'input[type=text]', function(e){
+		e.preventDefault();
+	})
+
+});