//pageX, pageY from jquery event

var getRowFromOffSet = function ($grid, pageX, pageY) {

var trs = $grid.find('tr');

for (var i = 0; i < trs.length; i++) {

var $tr = $(trs);

var left = $tr.offset().left;

var top = $tr.offset().top;

var bottom = top + $tr.height();

var right = left + $tr.width();

if (left <= pageX

&& top <= pageY

&& bottom >= pageY

&& right >= pageX)

{

return $tr;

}

}

return null;

}