<button type="button" class="btn btn-default button-colorcancel fontcancel">Cancel</button>
I want this button to call a servlet when I click it, do I need to use jQuery?
A simple way to do it without using javascript is to use a form and set the servlet as the action:
http://www.w3schools.com/tags/att_form_action.asp
Servlet returns "HTTP Status 404 The requested resource (/servlet) is not available"
Then you can modify your submit element to match what you have on your current button: