I want to implement a navigation menu on my website. I need to highlight a parent list item after click on its child menu item. This is Working, if it is a single file. I include it in all files. My problem of the below code is, when I click on a child menu item, its parent menu item is highlighted till the loading time. After loading completely, Highlighted color is disappearing. Clicking on the menu item which has no child, is also not highlighted.Any help would be greatly received.Thanks. My website link is www.theiab.org/IABPHP.