Conversion to JSTL - Help

Can anyone tell on how to convert this into JSTL

I am using JSP 2.0, JSTL 1.1 and tomcat. The "PropertyFileReader" used here reads a property file and returns a HashMap on calling getProperty().
The logic is just to change the CSS, where by user selects the theme in the previous page.

<%
String contextPath = request.getContextPath();
PropertyFileReader propertyFile = new PropertyFileReader("resources.Themes");

String themeId = "1";
themeId = request.getParameter("themeId");

if (themeId == null || "".equals(themeId))
themeId = "1";

String cssName = (String)(propertyFile.getProperty().get(themeId));

pageContext.setAttribute("cssName",cssName);
%>

<html>
<head>
<title>Theme</title>
<link rel="stylesheet" type="text/css" href="<%=contextPath%>/css/Homepage.css">
<link rel="stylesheet" type="text/css" href="<%=contextPath%>/css/${cssName}">

"Hariharan",

There aren't many rules that you need to worry about here on the Ranch, but one that we take very seriously regards the use of proper names. Please take a look at the JavaRanch Naming Policy and adjust your display name to match it.

In particular, your display name must be a first and a last name separated by a space character, and must not be obviously fictitious.

Thanks!
bear
JavaRanch Sheriff

Property file access is handled by the fmt class of JSTL tags. In particular please see the <fmt:message> tag.

Yes, It worked. Thanks
So the changed code is as follows.

<%
String contextPath = request.getContextPath();
%>

<fmt:setBundle basename="resources.Themes" var="theme" scope="session"/>
<c:set var="themeId" value="1"/>

<c:choose>
<c:when test="${empty param.themeId}">
<c:set var="themeId" value="1"/>
</c:when>

<c

therwise>
<c:set var="themeId" value="${param.themeId}"/>
</c

therwise>
</c:choose>

<c

ut value="${param.themeId}"/>
<html>
<head>
<title>Theme</title>
<link rel="stylesheet" type="text/css" href="<%=contextPath%>/css/<fmt:message key="${themeId}" bundle="${theme}"/>">

And I think, I have changed my display name correctly?

And I also want to know, if i can also change
<% String contextPath = request.getContextPath(); %>
to JSTL

Thank You in advance

And I also want to know, if i can also change <% String contextPath = request.getContextPath(); %> to JSTL

${pageContext.request.contextPath}