Navigation bar is not populating using javascript

hi,

I've got a task, where i need to write a code to navigate back to entity record list page in a java script under CRM 2015.

And here I've created a URL like  "http://mycrm/myOrg/main.aspx?etc=2&Pagetype=Entitylist&Navbar=on" and it's working fine but the CRM Navigation bar is not coming. also i've set navbar "on" but still it's missing... :(

Anyone please help me here.

Thanks!