I have used glassfish server in netbeans, now I changed to tomcat and when I run my web application that I have created in glassfish gives me the error : 

Deployment error:
 Access to Tomcat server has not been authorized. Set the correct
username and password with the "manager-script" role in the Tomcat
customizer in the Server Manager.

I have added a role with name "manager-script" in conf/tomcat-user.xml but where is my Server Manager? I did'nt find it. Please help me.
thanks...

tomcat netbeans-7
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