Issue in keeping the InfoView session valid using Custom JSP Open Document

Question

Hi
We are using OpenDocument URL in custom JSP to show BO Web Intelligence Document.  The documents are opening fine but some of our WebI documents have links to other WebI document,  when the link is clicked it takes to Info View Login Page.
If I login and logout once from InfoView then the WebI document links work fine.
Can you please guide me on how to make the session valid for WebI internal links?  Do I need to create a Cookie or use URL Encoding?
Following is the sample JSP code:
<%@ page import="com.crystaldecisions.sdk.exception.SDKException" %>
<%@ page import="com.crystaldecisions.sdk.framework.CrystalEnterprise" %>
<%@ page import="com.crystaldecisions.sdk.framework.IEnterpriseSession" %>
<%@ page import="com.crystaldecisions.sdk.framework.ISessionMgr" %>
<%@ page import="com.crystaldecisions.sdk.occa.infostore.IInfoStore" %>
<%@ page import="com.crystaldecisions.sdk.occa.security.ILogonTokenMgr"%>
<%
try{
String systemName = "ServerName";
String userName = "user";
String password = "pass";
String authType = "secEnterprise";
IEnterpriseSession enterpriseSession=null;
if (enterpriseSession == null)
ISessionMgr enterpriseSessionMgr = CrystalEnterprise.getSessionMgr();
enterpriseSession = enterpriseSessionMgr.logon(userName, password, systemName, authType);
ILogonTokenMgr logonTokenMgr = enterpriseSession.getLogonTokenMgr();
String defaultToken = logonTokenMgr.createWCAToken("",20,10);
response.sendRedirect("http://boServer:port/OpenDocument/opendoc/openDocument.jsp?iDocID=16894&token="+defaultToken);
catch(Exception e)
e.printStackTrace();
%>

Answer 1

Thanks Aasavari for responding. My problem is solved. 
I need not create any cookie or create token using getLogonToken
Some of the URLs in the webi documents were incorrect and so Info View was taking to the Info View Login page.  
But I am surprised though why info view not complain about incorret and rather takes to the login page.
Thanks for your help again.