function get_object(id)
{
if (document.getElementById)
{
return document.getElementById(id);
}
else if (document.all)
{
return document.all[id];
}
else if (document.layers)
{
return document.layers[id];
}
else
{
return null;
}
}
function change_media (file)
{
object = get_object ('mp');
if (object)
{
object.innerHTML = '';
return false;
object.innerHTML = '';
}
}