function ShowSpinner()
{
   // new Effect.Highlight('logo', {duration: 2});
	$('logo').hide();
	$('logo_spinner').show();
	new Effect.Pulsate('logo_spinner', { from: 0.6, pulses: 150, duration: 20 });
}
function HideSpinner()
{
	$('logo_spinner').hide();
	$('logo').show();
}