Scroll grid to k-state-selected

[Rinaldo]

Dear,
How can scroll grid to k-state-selected row ?

I'll try this but it's not work:

var iframe = $("#myGrid");

var tr = iframe.contents().find("tr[class=k-state-selected]");

$(iframe.contentWindow || iframe.contentDocument).scrollTop(tr.offset().top);

In my case I change row selected in this way:

var myGrid = $("#myGrid").data("kendoGrid");

myGrid.select(myGrid.tbody.find("td .key:contains('" + myKey + "')").closest("tr"));

But I want scroll grid at selected row.

Thanks,
Rinaldo