document.imageArray = new Array("navOneVision","navWhatAre","navHappenings","navProducts","navLinks","navContact","navFeatured","navPointer","navYour");
        document.statusArray = new Array("One Vision","What Are UNESCO World Heritage Sites","World Heritage Happenings","World Heritage Related Products","World Heritage List and Links","Contact Us","Featured UNESCO World Heritage Sites","The World Heritage Pointer","Your Page of World Heritage Sites");
        document.preloadMenu = new Array("navOneVision_on","navWhatAre_on","navHappenings_on","navProducts_on","navLinks_on","navContact_on","navFeatured_on","navPointer","navYour");

        with (document) for (var i=0; i<document.imageArray.length; i++){
                preloadMenu[i] = new Image;

                preloadMenu[i].src = 'images/' + imageArray[i] + '_on.jpg';
        }

        function menuOn(iNum) {
                window.status=document.statusArray[iNum];
                eval('document.images.menu' + iNum + '.src=document.preloadMenu[iNum].src');
        }

        function menuOff(iNum) {
                window.status='';
                eval('document.images.menu' + iNum + '.src="images/' + document.imageArray[iNum] + '.jpg"');
        }