function Altos_Menu_Show(Index)
{
	obj = document.getElementById("Altos_Menu_Sub_" + Index);
	if (obj != null)
	{
		obj.style.left = document.getElementById("Altos_Menu_Main_" + Index).offsetLeft + "px";
		obj.style.display = "";
	}
}
function Altos_Menu_Hide(Index)
{
	obj = document.getElementById("Altos_Menu_Sub_" + Index);
	if (obj != null)
	{
		document.getElementById("Altos_Menu_Sub_" + Index).style.display = "none";
	}
}

function updateSize(image, maxHeight)
{
    if (image.height > image.width)
    {
        if (image.height > maxHeight) 
        { 
            image.style.width  = "auto";
            image.style.height = maxHeight + "px"; 
        }
    }
    else
    {
        if (image.width > maxHeight) 
        { 
            image.style.height  = "auto";
            image.style.width = maxHeight + "px"; 
        }
    }
    image.style.visibility = "visible";
}