function show(thumbId, tableId)
    {
    var thumb = document.getElementById(thumbId);
    var table = document.getElementById(tableId);
    

    table.style.position = 'absolute';

	var offsetLeft = 0;
	var offsetTop = 0;
	while (thumb)
	{
		offsetLeft += thumb.offsetLeft;
		offsetTop += thumb.offsetTop;
		thumb = thumb.offsetParent;
	}
	
	if (navigator.userAgent.indexOf('Mac') != -1 && typeof document.body.leftMargin != 'undefined')
	{
		offsetLeft += document.body.leftMargin;
		offsetTop += document.body.topMargin;
	}

    table.style.left = offsetLeft;
    table.style.top = offsetTop;
    table.style.display = 'block';
    }
  
   function hide(tableId)
    { var table =document.getElementById(tableId) 
      table.style.display = 'none';
    }