javascript pass XML document object as argument

I am reading an XML document to dynamically populate select boxes. The first select box is populated with all the activity names which i have done already in jsp.

DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
Document doc = docBuilder.parse("C:\\Projects\\RegressionTester\\src\\main\\resources\\TestActivitiesXML.xml");
NodeList activityNodes = doc.getElementsByTagName("activity");

Upon selecting an activity the next select box should be populated with the activity's functions. I am trying to acc开发者_高级运维omplish through a javascript method using the onchange eventhandler. But I have trouble passing the doc object as an argument. Any help would be appreciated.

onchange="return testMethodChange(this,<%=doc%>)"

• If you pass like this testMethodChange(this,<%=doc%>). It will not work because testMethodChange will only get some text.

• Instead read and parse TestActivitiesXML.xml in javascript function itself.

• After parsing the XML populate it in drop down according to your requirement.