function BW_OpenPage(url)
{
	width=612;
	height=459;
	screenleft=(window.screen.width-width)/2;
	screentop=(window.screen.height-height)/2;
	page=window.open(url,'_blank','height='+height+',width='+width+',fullscreen=no,toolbar=no,menubar=no,location=no,resizable=no,scrollbars=no,status=no,directories=no,channelmode=no,top='+screentop+',left='+screenleft+'');
}

function BW_OpenPage_2(url)
{
	width=640;
	height=420;
	screenleft=(window.screen.width-width)/2;
	screentop=(window.screen.height-height)/2;
	page=window.open(url,'_blank','height='+height+',width='+width+',fullscreen=no,toolbar=no,menubar=no,location=no,resizable=no,scrollbars=no,status=no,directories=no,channelmode=no,top='+screentop+',left='+screenleft+'');
}