<!-- Hide script from non-compatible browsers

function loadnavigator(imagepath) {
  if (document.images) {
    
	// home
	navihomeon  = new Image();
    navihomeon.src = imagepath + "natra-home-on.gif";
    navihomeoff = new Image();
    navihomeoff.src = imagepath + "natra-home-off.gif";
	
	//  products
	naviprodon  = new Image();
    naviprodon.src = imagepath + "natra-prod-on.gif";
    naviprodoff = new Image();
    naviprodoff.src = imagepath + "natra-prod-off.gif";	
    
	// partner
	navipartneron  = new Image();
    navipartneron.src = imagepath + "natra-partner-on.gif";
    navipartneroff = new Image();
    navipartneroff.src = imagepath + "natra-partner-off.gif";	
	
	// distribution
	navidistribon  = new Image();
    navidistribon.src = imagepath + "natra-distrib-on.gif";
    navidistriboff = new Image();
    navidistriboff.src = imagepath + "natra-distrib-off.gif";	
	
	// affiliate
	naviaffiliateon  = new Image();
    naviaffiliateon.src = imagepath + "natra-affiliate-on.gif";
    naviaffiliateoff = new Image();
    naviaffiliateoff.src = imagepath + "natra-affiliate-off.gif";	
	
	// services to partners
	navistpon  = new Image();
    navistpon.src = imagepath + "natra-stp-on.gif";
    navistpoff = new Image();
    navistpoff.src = imagepath + "natra-stp-off.gif";	
	
	// services to customers
	navistcon  = new Image();
    navistcon.src = imagepath + "natra-stc-on.gif";
    navistcoff = new Image();
    navistcoff.src = imagepath + "natra-stc-off.gif";	
	
	// opportunities
	navioppon  = new Image();
    navioppon.src = imagepath + "natra-opp-on.gif";
    navioppoff = new Image();
    navioppoff.src = imagepath + "natra-opp-off.gif";	
	
	// links
	navilinkson  = new Image();
    navilinkson.src = imagepath + "natra-links-on.gif";
    navilinksoff = new Image();
    navilinksoff.src = imagepath + "natra-links-off.gif";		
	
	// contact us
	navicontacton  = new Image();
    navicontacton.src = imagepath + "natra-contact-on.gif";
    navicontactoff = new Image();
    navicontactoff.src = imagepath + "natra-contact-off.gif";		
	
  }
}

function switchimage() {
    if (document.images) {
        for (var i=0; i<switchimage.arguments.length; i+=2) {
            document[switchimage.arguments[i]].src = eval(switchimage.arguments[i+1] + ".src");
        }
    }
}

<!-- End Script -->