Problem with onload attribute in body tag

hi all,
i have been trying to test alert message boxes in servlets.when i am trying to run the servlet the alert window box doen;t appear (but it appears when i put "hello" inside the alertbrackets.and if i change it to some other text , it never appears.sounds silly , but pleas help me.
please help me out. below is the code:
public class TestApplet extends HttpServlet
     PrintWriter out = null;
     public void doPost (HttpServletRequest req, HttpServletResponse res) throws ServletException , IOException
          String strAlert = "alert('The userid is already existing.Please select another one')";
          out=res.getWriter();
          res.setContentType("text/html");
          out.println("<html>");
          out.println("<head>");
          out.println("<title>Welcome To Online Stock Market</title>");
          out.println("</head>");
          out.println("<body onload ="+strAlert+">");
          out.println("</body>");
          out.println("</html>");
          out.close();
     public void doGet(HttpServletRequest req, HttpServletResponse res)throws ServletException, IOException
          doPost(req, res);
}

Instead of:
out.println("<body onload ="+strAlert+">");
Try this:
out.println("<body onload =\""+strAlert+\"">");
Add two \" around the alert call.

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Instead of:
out.println("<body onload ="+strAlert+">");
Try this:
out.println("<body onload =\""+strAlert+\"">");
Add two \" around the alert call.

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Edited by: Franziska Madl on Mar 2, 2011 2:39 PM

Hi
Thank you for your answer. The function module SMUM_XML_PARSE is a good way to Read a XML. Now I have found the Correct way with simple transfer and it works with an array too.
many regards
Stefan
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