function ShowSizeInfo(sender, event)
{
   var coords = AlspaCore.GetCoords(sender);
   var el = document.getElementById('sizing_info');
   
   el.style.top = (coords.y - 100) + 'px';
   el.style.left = (coords.x - 460) + 'px';
   el.style.display = 'block';
}

function HideSizeInfo()
{
   var el = document.getElementById('sizing_info');
   el.style.display = 'none';
}