XSL如下：

<xsl:sort select="item" order="ascending" data-type="text"/>

javascript:

  var xslTpl = new ActiveXObject("MSXML2.XSLTemplate");
  var xslDoc = new ActiveXObject("MSXML2.FreeThreadedDOMDocument");
  var xslProc;
  xslDoc.async = false;
  xslDoc.load("report_vulner.xsl");
  xslTpl.stylesheet = xslDoc;
  xslProc = xslTpl.createProcessor();
  
  var sortNode  = xslDoc.selectSingleNode("//xsl:sort");
  var sortField = xslDoc.selectSingleNode("//xsl:sort/@select");
  var sortOrder = xslDoc.selectSingleNode("//xsl:sort/@order");
  var sortDtype = xslDoc.selectSingleNode("//xsl:sort/@data-type");
  alert(sortNode.xml);
  alert(sortField.nodeValue);
  alert(sortOrder.nodeValue);
  alert(sortDtype.nodeValue);

均能取得属性值，如何修改select、order、data-type呢？