rem: Other versions are included for completeness, 5.0 is excluded as it is 
add:  Other versions are included for completeness, 5.0 is excluded as it is  
context:     parseFromString: function(str, contentType)    {      /*       According to information on the Microsoft XML Team's WebLog        it is recommended to check for availability of MSXML versions 6.0 and 3.0.       Other versions are included for completeness, 5.0 is excluded as it is        "off-by-default" in IE7 (which could trigger a goldbar).         http://blogs.msdn.com/xmlteam/archive/2006/10/23/using-the-right-version-of-msxml-in-internet-explorer.aspx       http://msdn.microsoft.com/library/default.asp?url=/library/en-us/xmlsdk/html/aabe29a2-bad2-4cea-8387-314174252a74.asp              See similar code in qx.lang.Xml, qx.io.remote.XmlHttpTransport      */      var vServers =      [        "MSXML2.DOMDocument.6.0",        "MSXML2.DOMDocument.3.0",        "MSXML2.DOMDocument.4.0",        "MSXML2.DOMDocument",  // v3.0        "MSXML.DOMDocument",   // v2.x        "Microsoft.XMLDOM"     // v2.x      ];      var xmlDocument;      for (var i=0, l=vServers.length; i<l; i++)      {          try        {          xmlDocument = new ActiveXObject(vServers[i]);          break;        }        catch(ex)        {          xmlDocument = null;        }      }      if(xmlDocument) {        xmlDocument.loadXML(str);      }      return xmlDocument;    },
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