<!--
if (document.images) {
    homeup       = new Image();
    homeup.src   = "images/nav_home_up.gif" ;
    homedown     = new Image() ;
    homedown.src = "images/nav_home_over.gif" ;
		
    productsup       = new Image();
    productsup.src   = "images/nav_products_up.gif" ;
    productsdown     = new Image() ;
    productsdown.src = "images/nav_products_over.gif" ;
		
    servicesup       = new Image();
    servicesup.src   = "images/nav_services_up.gif" ;
    servicesdown     = new Image() ;
    servicesdown.src = "images/nav_services_over.gif" ;
		
    contactup       = new Image();
    contactup.src   = "images/nav_contact_up.gif" ;
    contactdown     = new Image() ;
    contactdown.src = "images/nav_contact_over.gif" ;
		
    companyup       = new Image();
    companyup.src   = "images/nav_company_up.gif" ;
    companydown     = new Image() ;
    companydown.src = "images/nav_company_over.gif" ;
		
		newsup       = new Image();
    newsup.src   = "images/nav_news_up.gif" ;
    newsdown     = new Image() ;
    newsdown.src = "images/nav_news_over.gif" ;

}
function buttondown( buttonname )
{
    if (document.images) {
      document[ buttonname ].src = eval( buttonname + "down.src" );
    }
}
function buttonup ( buttonname )
{
    if (document.images) {
      document[ buttonname ].src = eval( buttonname + "up.src" );
    }
}
// -->