Show/Hide child elements when on parent page

I am working with Wordpress and the \[code\]wp_nav_menu\[/code\] function. I have built a sample menu in the Wordpress backend like such:
  • Menu Item 1
  • Menu Item 2
    • Sub Menu Item
  • Menu Item 3
I would like for the submenu to only show when on the parent or parent's child's pages.I am unsure of how do go about this. I think CSS/jquery would do, but I will take any solutions.Here is the page I am working on currently.EDIT: Sorry for the confusion - I do not want a rollover menu, I want it to be static. When I am on a parent page, I want the submenu (child) to show. When I am not on a parent page, I do not want the child links to show.
 
Back
Top