onclick page go to homepage without any absolute path

Question

I want to click on link and I want to go to the page on home page by it self

<a onclick="javascript:GoToHomePage()" href="javascript:void(0)">Home page</a>

function is

function GoToHomePage()
{
    window.location = 'default.aspx';   
}

but i want the url of page www.testtest.com instead of www.testtest.com/default.aspx

I can't even give the absolute path like www.testtest.com as it's a portal and same page coming in few more portals.

Answer 1

Try this:

window.location = '/';

Executing this code will send your visitor directly to the root of your website.

Answer 2

following code will take you to '//www.testtest.com/'

   function GoToHomePage()
  {
    window.location = '/';   
  }