// Move an element directly on top of another element (and optionally
    // make it the same size)
    function Cover(bottom, top, ignoreSize) 
    {
        var location = Sys.UI.DomElement.getLocation(bottom);
        top.style.position = 'absolute';
        top.style.top = bottom.style.top;

        if (top.id.toLowerCase().indexOf("info") != -1)
            top.style.left = location.x + 'px';
        else // Adding icon width
            top.style.left = location.x + 17 + 'px';

        if (!ignoreSize) 
        {
            top.style.height = bottom.offsetHeight + 'px';
            top.style.width = bottom.offsetWidth + 'px';
        }
    }