function getAbsoluteLeft(objectId)
{
        // Get an object left position from the upper left viewport corner
        // Tested with relative and nested objects
        o = document.getElementById(objectId)
        oLeft = o.offsetLeft            // Get left position from the parent object
        while(o.offsetParent!=null) {   // Parse the parent hierarchy up to the document element
                oParent = o.offsetParent    // Get parent object reference
                oLeft += oParent.offsetLeft // Add parent left position
                o = oParent
        }
        // Return left postion
        return oLeft
}

function getAbsoluteTop(objectId) {
        // Get an object top position from the upper left viewport corner
        // Tested with relative and nested objects
        o = document.getElementById(objectId)
        oTop = o.offsetTop            // Get top position from the parent object
        while(o.offsetParent!=null) { // Parse the parent hierarchy up to the document element
                oParent = o.offsetParent  // Get parent object reference
                oTop += oParent.offsetTop // Add parent top position
                o = oParent
        }
        // Return top position
        return oTop
}