Expand Metadata Navigation term set by default ?

Hello,

I am trying this below code but its not working.

script src="https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"
type="text/javascript"></script><script>
  $(window).load(function() {
      // Get the Term Set navigation node href attribute
      var expandedNode = $('#ctl00_PlaceHolderLeftNavBar_ctl00_WebTreeViewn1').attr('href');

      // If href does not contain a javascript method with '_ToggleNode' in, this is the first time the page is loading and call methods to expand nodes
      if (expandedNode.indexOf("_ToggleNode") == -1) {
          // Auto expand Tags
          TreeView_PopulateNode(ctl00_PlaceHolderLeftNavBar_ctl00_WebTreeViewn1" href="javascript:TreeView_PopulateNode(ctl00_PlaceHolderLeftNavBar_ctl00_WebTreeView_Data,1,document.getElementById('ctl00_PlaceHolderLeftNavBar_ctl00_WebTreeViewn1'),document.getElementById('ctl00_PlaceHolderLeftNavBar_ctl00_WebTreeViewt1'),document.getElementById('ctl00_PlaceHolderLeftNavBar_ctl00_WebTreeViewt1i'),' ','Kategorie','TP/EM\\_Kategorie','t','30:FieldNameNode:365548a7-5264-4b3e-8277-dee2af7fc364:23f8c77c-040f-4f92-a400-97c1acd73398:0d8ba14b-6a80-4350-be3c-f8b4ec97d187:30|ListNode|365548a7-5264-4b3e-8277-dee2af7fc364|23f8c77c-040f-4f92-a400-97c1acd73398|f17507a0-b9e0-4067-b290-9d51ee92d33e','tt');

          // Toggle tree view
          TreeView_ToggleNode(ctl00_PlaceHolderLeftNavBar_ctl00_WebTreeViewn1" href="javascript:TreeView_ToggleNode(ctl00_PlaceHolderLeftNavBar_ctl00_WebTreeView_Data,1,document.getElementById('ctl00_PlaceHolderLeftNavBar_ctl00_WebTreeViewn1'),' ',document.getElementById('ctl00_PlaceHolderLeftNavBar_ctl00_WebTreeViewn1Nodes'))
      }
  });</script>

Thanks