Jahia javascript:window.ope('jspPath')

Hello,
Can someone help me ?
I want open a popup throw a new template by a javascript command :
window.open...
The problem is that window.open, or OpenJahiaWindow need a pageId as a
parameter, and me I have a only the jsp's path.... (include/tot.jsp).
 
Has anyone an idea ??
 
Thanks ..