Web Application Help

I am really not able to understand where to apply the servlets and jsp pages like if i have a page www.somesite.com/index.html can i use a form on that site and when they click on the form use a servlet to process the information and then display an jsp page upon success.But how do i provide the web container enviroment for it.Also i can check the source code for this forum site and most of it is in java script but aint jsp introduces to remove scripting from pages?

please clarify my doubts kindly

[515 byte] By [i.loverboya] at [2007-11-26 18:02:36]