function _L(element) 
{ 
    if ( arguments.length != 1 || element == null ) return null; 
    var elmt = element; 
    var offsetTop = elmt.offsetTop; 
    var offsetLeft = elmt.offsetLeft; 
    var offsetWidth = elmt.offsetWidth; 
    var offsetHeight = elmt.offsetHeight; 
    
    while( elmt = elmt.offsetParent ) 
    { 
        if ( elmt.style.position == 'absolute' || elmt.style.position == 'relative' || ( elmt.style.overflow != 'visible' && elmt.style.overflow != '' ) ) 
            break;  
        offsetTop += elmt.offsetTop; 
        offsetLeft += elmt.offsetLeft; 
    } 
    return offsetLeft;
} 

function _T(element) 
{ 
    if ( arguments.length != 1 || element == null ) return null; 
    
    var elmt = element; 
    var offsetTop = elmt.offsetTop; 
    var offsetLeft = elmt.offsetLeft; 
    var offsetWidth = elmt.offsetWidth; 
    var offsetHeight = elmt.offsetHeight; 
    while( elmt = elmt.offsetParent ) 
    { 
        if ( elmt.style.position == 'absolute' || elmt.style.position == 'relative' || ( elmt.style.overflow != 'visible' && elmt.style.overflow != '' ) ) 
            break;  
        offsetTop += elmt.offsetTop; 
        offsetLeft += elmt.offsetLeft; 
    } 
    return offsetTop;
}