JQuery Find Absolute Position of element

Scenario: Get coordinates of a element(X, Y) to display overlay message immediate next or immediate below the element.
Based on the coordinates set the absolute position of the control (overlay) to display it accordingly. The overlay can be started any side/corner of the element.

Get the element object using JQuery:

var obj = $('[id$=controlelement]');

Get the position of the element from Left

function findPosLeft(obj) 
{
    var pos = obj.offset();
    var left = pos.left;
    return left;
}

Get the position of the element from Top

function findPosTop(obj) 
{
    var pos = obj.offset();
    var top = pos.top;
    return top;
}

Get the position of the element from Bottom

function findPosBottom(obj) 
{
    var pos = obj.offset();
    var top = pos.top;
    var height = obj.height();
    var bottom = top + height;
    return bottom;
}

Get the position of the element from Right

function findPosRight(obj) 
{
    var pos = obj.offset();
    var left = pos.left;
    var width = obj.width();
    var right = left + width;
    return right;
}