drag and drag issue with absolute div in table

Question

I am creating table dynamically And adding events to it.when i drag and drop events into table td then event.target.id returns the wrong drop position.it is returning Position where the center position of Div is placed. i need to get td of div top position.

Note:: Events are Placed with absolute top and Left Position.

dragObj = $('#timesheet td');
$( dragObj ).droppable({
      drop: function( event, ui ) {
       alert('drop'+event.target.id);
      }
    });