function header_popup(filename)
{   
	var FullFilename = filename;
	window.open(FullFilename, 'MediaGallery', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=yes,width=560,height=380');
}
function header_popup2(filename)
{   
	var FullFilename = filename;
	window.open(FullFilename, 'MediaGallery', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=yes,width=675,height=500');
}