eclipse dynamic web project - default start page

I created in Eclipse dynamic web project, I have index.html in WEB-INF folder. I click on the main folder of the project Run as > Run on server chose Tomcat v7.0, finish, and it runs OK. But, when I rename index.html to another name I get the message: The requested resource (/MyProject/) is not available. - How can I change the default page ? - can I put in default page asp file ? My web.xml is: ``` <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5"> <display-name>MyFirstServlet</display-name> <welcome-file-list> <welcome-file>index.html</welcome-file> <welcome-file>index.htm</welcome-file> <welcome-file>index.jsp</welcome-file> <welcome-file>default.html</welcome-file> <welcome-file>default.htm</welcome-file> <welcome-file>default.jsp</welcome-file> </welcome-file-list> <servlet> <description>new</description> <display-name>GrettingServlet</display-name> <servlet-name>GrettingServlet</servlet-name> <servlet-class>GrettingServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>GrettingServlet</servlet-name> <url-pattern>/GrettingServlet</url-pattern> </servlet-mapping> </web-app> ```