if(document.images)
{
	about_us_off = new Image();	about_us_off.src="/images/navigation/about_us_off.gif";
	about_us_on = new Image();	about_us_on.src="/images/navigation/about_us_on.gif";
	
	board_meetings_off = new Image();	board_meetings_off.src="/images/navigation/board_meetings_off.gif";
	board_meetings_on = new Image();	board_meetings_on.src="/images/navigation/board_meetings_on.gif";
	
	the_port_at_work_off = new Image();	the_port_at_work_off.src="/images/navigation/the_port_at_work_off.gif";
	the_port_at_work_on = new Image();	the_port_at_work_on.src="/images/navigation/the_port_at_work_on.gif";
	
	business_at_the_port_off = new Image();	business_at_the_port_off.src="/images/navigation/business_at_the_port_off.gif";
	business_at_the_port_on = new Image();	business_at_the_port_on.src="/images/navigation/business_at_the_port_on.gif";
	
	foreign_trade_zone_off = new Image();	foreign_trade_zone_off.src="/images/navigation/foreign_trade_zone_off.gif";
	foreign_trade_zone_on = new Image();	foreign_trade_zone_on.src="/images/navigation/foreign_trade_zone_on.gif";
	
	news_and_calendar_off = new Image();	news_and_calendar_off.src="/images/navigation/news_and_calendar_off.gif";
	news_and_calendar_on = new Image();	news_and_calendar_on.src="/images/navigation/news_and_calendar_on.gif";
	
	safety_and_security_off = new Image();	safety_and_security_off.src="/images/navigation/safety_and_security_off.gif";
	safety_and_security_on = new Image();	safety_and_security_on.src="/images/navigation/safety_and_security_on.gif";
	
	connect_with_us_off = new Image();	connect_with_us_off.src="/images/navigation/connect_with_us_off.gif";
	connect_with_us_on = new Image();	connect_with_us_on.src="/images/navigation/connect_with_us_on.gif";
}

function imageRoll(picName,picState)
{
	if(document.images)
	{
		document.images[picName].src = eval(picName + '_' + picState + '.src');
	}
}