if( self.screen )
{
	sd = screen.colorDepth
	sh = screen.height
	sw = screen.width
	if (sd<24 || sw<800 || sh<600)
	{
		document.write('<div style="margin: 5mm; padding: 0 5mm 5mm 5mm; border: solid #FFFFFF">')
		document.write('<H2>Warning</H2>')
		document.write('<SMALL>These galleries are optimised for a minimum display size of 800 x 600 pixels and a minimum colour depth of 24 bits (16.7 million colours). ')
		document.write('We detected your screen size to be ' +sw+ ' x '+sh+ ' pixels with ' +sd+ ' bit colour. ')
		document.write('If possible please increase your display resolution and colour depth as required. ')
		document.write('If you are unable to make these changes the images will not display optimally.</SMALL></div>')
	}
}