Tweaks to prefs. JUst some shuffling. r/sr=hewitt,blake

suite/common/pref/pref-themes.xul

@@ -88,7 +88,7 @@
   </hbox>
   <separator/>
   <hbox align="start">
-    <html:a id="themesLink" href="&getNewThemesURL;"
+    <html:a class="themesLink" id="themesLink" href="&getNewThemesURL;"
             style="display: block;" target="_new">&getNewThemes.label;</html:a>
   </hbox>
 </page>