Browser interaction: read Data from Browser using Runner

Greetings,

I am trying to find my way through MII. I suceeded in creating transactions and now I am about to make my first steps towards User interaction. I googled around and found some pages (like XMII Runner) that i used to create the following code inside a HTML.

I inserted a button and a container. The transaction I created is returning some integer value as output. I just want to dispaly that figuer in the container. As I understood, runner is returning an XML that can be parsed.

To do so, I used the following code to print runner XML but somehow I cannot manage to get the result....How can I call that runner?!

When I paste URL created by fnCrtRunner into my browser, I get below result - so Runner is working.

Can somebody assist me? That would be awesome!

Call XML

      <button type="button" onclick="fnCallRunner();">Run Transaction</button>

      <div id="result">empty</div>

      <script type="text/javascript">

     function fnCrtRunner()

         {

          var URL = "http://XXXX/XMII/Runner?Transaction=TEST/Browser GUI/getTargetQuantity&OutputParameter=DailyQuantity";

                     URL +="&Content-Type=text/xml&IsBinary=true";

          return URL;

         }

         function fnCallRunner()

           {

         var runner = fnCrtRunner;

         var x = new XMLHttpRequest();

         x.open("GET", runner, true);

         document.getElementById("result").innerHTML = x.responseXML;

         }

Runner Result:

<?xml version="1.0" encoding="UTF-8"?>
<RowsetsDateCreated="2014-12-08T01:51:26"EndDate="2014-12-08T01:51:26"StartDate="2014-12-08T01:51:26"Version="14.0 SP5 Patch 3 (May 19, 2014)"TransactionID="-1">
   <RowsetTrxID="-1">
      <Columns>
         <ColumnDescription=""MaxRange="0.0"MinRange="0.0"Name="DailyQuantity"SQLDataType="-5"SourceColumn="DailyQuantity"/>
      </Columns>
      <Row>
         <DailyQuantity>15</DailyQuantity>
      </Row>
   </Rowset>
</Rowsets>