if (document.images) {
	products_over=new Image();  products_over.src ="/images/products_over.jpg"; 
	products_off=new Image();  products_off.src="/images/products.jpg"; 

	contact_over=new Image();  contact_over.src ="/images/contact_over.jpg"; 
	contact_off=new Image();  contact_off.src="/images/contact.jpg"; 

	newsletter_over=new Image();  newsletter_over.src ="/images/newsletter_over.jpg"; 
	newsletter_off=new Image();  newsletter_off.src="/images/newsletter.jpg"; 

	about_over=new Image();  about_over.src ="/images/about_over.jpg"; 
	about_off=new Image();  about_off.src="/images/about.jpg"; 

	governance_over=new Image();  governance_over.src ="/images/governance_over.jpg"; 
	governance_off=new Image();  governance_off.src="/images/governance.jpg"; 

}

function navOver(iconName) {
	eval('document.' + iconName + '.src = ' + iconName + '_over.src');
}

function navOut(iconName) {
	eval('document.' + iconName + '.src = ' + iconName + '_off.src');
}