Item13123: Convert parent topic selector to jquery

The more topic actions page takes a very long time to load. This is due
to the parent selector populating on page load.  Convert to jquery
autocomplete greatly reduces load time.

core/templates/more.tmpl

@@ -97,11 +97,8 @@
 <form name="main" action="%SCRIPTURLPATH{"save"}%/%WEB%/%TOPIC%?action_save=1" method="post">
 <div class="foswikiFormSteps">
 <div class="foswikiFormStep">
-<h3>%MAKETEXT{"Current parent:"}% %IF{"'NONE%META{"parent" dontrecurse="on"}%'='NONE'" then="(none)" else='%SEARCH{ "name = '%TOPIC%'" scope="topic" type="query" nosearch="on" nototal="on" format="[[$parent]]" }%' }%</h3>
-</div>
-<div class="foswikiFormStep">
 <h3>%MAKETEXT{"Select topic parent"}%</h3>
-<p>%IF{"defined pickparent" then="<select name='topicparent' size='10' class='foswikiSelect' tabindex='12'>$percntTOPICLIST{$quot<option $marker value='$name'>$name</option>$quot separator=$quot$quot selection=$quot$percntMETASEARCH{type=$quotparent$quot}$percnt}$percnt<option value=$quotnone$quot>$percntMAKETEXT{$quot(no parent, orphaned topic)$quot}$percnt</option></select>" else="<input type='text' name='topicparent' size='30' class='foswikiInputField' />&nbsp;<span class='foswikiUnvisited'><a href='$percntSCRIPTURLPATH{view}$percnt/$percntWEB$percnt/$percntTOPIC$percnt?template=more;$percntQUERYSTRING$percnt;pickparent=1#SetParent'>%MAKETEXT{"Pick from a list"}%</a></span>"}%</p>
+%INCLUDE{"System.JQueryAjaxHelper" section="topicselector" INPUT_NAME="topicparent" EXCLUDE="%TOPIC%" PLACEHOLDER="%IF{"'NONE%META{"parent" dontrecurse="on"}%'='NONE'" then="(none)" else='%SEARCH{ "name = '%TOPIC%'" scope="topic" type="query" nosearch="on" nototal="on" format="$parent" }%' }%"}%
 </div>
 <div class="foswikiFormStep foswikiLast">
 <p><input type='submit' class='foswikiButton' value='%MAKETEXT{"Set new parent"}%' /></p>
@@ -211,6 +208,7 @@ then="-->"
 
 
 %TMPL:DEF{"message"}%
+%JQREQUIRE{"ui::autocomplete"}%
 %TMPL:P{"revision"}%
 %TMPL:P{"setparent"}%
 %TMPL:P{"settings"}%
@@ -219,4 +217,4 @@ then="-->"
 %TMPL:P{"copy"}%
 %TMPL:P{"childtopics"}%
 %TMPL:P{"backlinks"}%
-%TMPL:END%
+%TMPL:END%