Subgrid in CRM 2013 : How to find readyState complete?

Hi,

In CRM 2011, Our team was able to attach subgridOnLoad like this, Any workaround for CRM 2013? :

function subGridOnload() { var grid = document.getElementById('grid_identifications');  if (grid.readyState!="complete")  {  // delay one second and try again.  setTimeout(subGridOnload, 1000);  return;  } // logic }