unpin
Disables the pinned state of the Window so that the widget will move together with the other page content when the page is scrolled.
Example
<div style="height: 5000px;"></div>
<div id="dialog"></div>
<script>
$("#dialog").kendoWindow({
pinned: true,
position: { top: 100 }
});
var dialog = $("#dialog").data("kendoWindow");
dialog.unpin();
</script>