<!--

if(document.images){

      holit = new Image(); 
      holit.src = "images/nav/nav01_home-on.png"; 
      hodim = new Image(); 
      hodim.src = "images/nav/nav01_home.png";
      prlit = new Image(); 
      prlit.src = "images/nav/nav02_products-on.png"; 
      prdim = new Image(); 
      prdim.src = "images/nav/nav02_products.png"; 
      svlit = new Image();
      svlit.src = "images/nav/nav03_services-on.png"; 
      svdim = new Image(); 
      svdim.src = "images/nav/nav03_services.png"; 
      rslit = new Image(); 
      rslit.src = "images/nav/nav04_resources-on.png"; 
      rsdim = new Image(); 
      rsdim.src = "images/nav/nav04_resources.png"; 
      ablit = new Image(); 
      ablit.src = "images/nav/nav05_aboutus-on.png"; 
      abdim = new Image(); 
      abdim.src = "images/nav/nav05_aboutus.png";
	  rqlit = new Image(); 
      rqlit.src = "images/nav/nav06_requestinfo-on.png"; 
      rqdim = new Image(); 
      rqdim.src = "images/nav/nav06_requestinfo.png";
	  stlit = new Image(); 
      stlit.src = "images/nav/nav10_standalone-on.png"; 
      stdim = new Image(); 
      stdim.src = "images/nav/nav10_standalone.png"
	  mnlit = new Image(); 
      mnlit.src = "images/nav/nav11_manifold-on.png"; 
      mndim = new Image(); 
      mndim.src = "images/nav/nav11_manifold.png"
	  drlit = new Image(); 
      drlit.src = "images/nav/nav12_drummount-on.png"; 
      drdim = new Image(); 
      drdim.src = "images/nav/nav12_drummount.png"
	  sptlit = new Image(); 
      sptlit.src = "images/nav/nav13_spareparts-on.png"; 
      sptdim = new Image(); 
      sptdim.src = "images/nav/nav13_spareparts.png";
	  
} 

function rollOn(n){
if (document.images){
   light=eval(n+"lit.src");
        document [n].src=light;
        }
}

function rollOff(n){
if (document.images){
        dark=eval(n+"dim.src");
        document [n].src=dark;
   }
}

//-->