Error Page Generation in Apache Server

["Raghavendra Datt" <raghavendradatt@xxxxxxxxx>]

Hi,
  I was trying to pinpoint one of the functionalities of apache in the server code. On an error like "404", server generates an error page saying "requested resource not available" and also it shows up the version info of apache some thing like "Apache Tomcat/4.1.24-LE-jdk14".  I am not sure what part of the code generates error pages and shows some thing like this on the screen.

I am using Apache/2.0.52 version. but, not sure why it shows some thing like 4.1.24-LE-jdk14. Any help or suggestions on where to look for these error page generations in the code would be appreciated.

Thanks folks,
Raghu