var thumb = null;
function showThumbnail(which,e)
{
	thumb = document.getElementById('thumb');
	if( thumb && thumb.style.visibility == 'hidden' )
	{
		thumb.style.visibility = 'visible';
		thumb.innerHTML        = '<img src="' + which + '">';
	}
}
function closeThumbnail()
{
	if( thumb )
		thumb.style.visibility = 'hidden';
}

var thumb1 = null;
function showThumbnail1(which,e)
{
	thumb1 = document.getElementById('thumb1');
	if( thumb1 && thumb1.style.visibility == 'hidden' )
	{
		thumb1.style.visibility = 'visible';
		thumb1.innerHTML        = '<img src="' + which + '">';
	}
}
function closeThumbnail1()
{
	if( thumb1 )
		thumb1.style.visibility = 'hidden';
}

var thumb2 = null;
function showThumbnail2(which,e)
{
	thumb2 = document.getElementById('thumb2');
	if( thumb2 && thumb2.style.visibility == 'hidden' )
	{
		thumb2.style.visibility = 'visible';
		thumb2.innerHTML        = '<img src="' + which + '">';
	}
}
function closeThumbnail2()
{
	if( thumb2 )
		thumb2.style.visibility = 'hidden';
}