Java EE (Java Enterprise Edition) General Discussion

Hi All,
i wanted to use expression language (EL) in my jsp page. But the expression language code is not getting evaluated. For example
for the following code
<jsp:root version="2.0">
<jsp:declaration>String s="Test String">
<jsp:text>This is a ${s}</jsp:text>
</jsp:root>
The output is "This is a ${s}". The EL ${s} is not being evaluated.

I am using Tomcat 4.1.24, which implements JSP 1.2 spec.
In JSP 1.2 specification i found that EL can be enabled by adding the following code under the element <web-app> in the web.xml file
<jsp-config>
<jsp-property-group>
<url-pattern>*.jsp</url-pattern>
<el-ignored>true</el-ignored>
</jsp-property-group>
<jsp-config>

but on adding this code in web.xml file tomcat generates parse error stating that "<jsp-config>" element not found. Now the problem is the dtd file (web-app_2_3.dtd) which is refered by web.xml is not having the element <jsp-config> or <jsp-property-group> or <el-enabled>

IF SOMEONE HAVE FOUND SOME SOLUTION FOR THIS KIND OF PROBLEM PLS HELP ME

Thanx,
Karthikraj.