post-hider.js: further code cleanup; fix displaying on board pages

js/post-hider.js

@@ -30,8 +30,7 @@ function phPostHandle(element) {
  else { element.removeClass("thread-hidden"); pomitted.show(); preplies.show(); pbody.show(); pimage.show(); pbutton.text("[–]"); }
 }
 
-$(document).ready(function(){
-  $('form[name="postcontrols"] > div[id^="thread"]').each(function(index, element){
+function phHandleThread(index, element) {
   // Get thread ID.
   var pin = $(this).children("div.post.op").children("p.intro");
   var tid = phGetOpID($(this));
@@ -45,5 +44,10 @@ $(document).ready(function(){
     });
     phPostHandle($(this));
   }
-  });
+}
+
+$(document).ready(function(){
+  if (active_page != "thread") {
+    $('form[name="postcontrols"] > div[id^="thread"]').each(phHandleThread);
+  }
 });