function toggle(div)
{
    if (document.getElementById(div))
    {
	var div = document.getElementById(div);
	if(div.style.display == 'none')
	{
	    div.style.display = 'block';
	    document.getElementById('image_detail').src = document.getElementById('image_detail').src.replace("descendant", "ascendant");
	}
	else
	{
	    div.style.display = 'none';
	    document.getElementById('image_detail').src = document.getElementById('image_detail').src.replace("ascendant", "descendant");
	}
    }
    return false;
}

function change_avatar(image, avatar)
{
    if (document.getElementById(image))
    {
	var image = document.getElementById(image);
	image.src = avatar
    }
    return false;
}