//  Browser check
  if (navigator.appName.indexOf('Microsoft') >= 0 && navigator.appVersion.indexOf('3.') >=0) {
    okbrowser = false;
    }
  else {
    okbrowser = true;
    }
  //  Load images
  imag = new Array();
  imag[0]="/images/en/nav/nav_aboutmf_1.gif";
  imag[1]="/images/en/nav/nav_abouttri_1.gif";
  imag[2]="/images/en/nav/nav_bdc_1.gif";
  imag[3]="/images/en/nav/nav_contact_1.gif";
  imag[4]="/images/en/nav/nav_help_1.gif";
  imag[5]="/images/en/nav/nav_home_1.gif";
  imag[6]="/images/en/nav/nav_legal_1.gif";
  imag[7]="/images/en/nav/nav_planners_1.gif";
  imag[8]="/images/en/nav/nav_reading_1.gif";
  imag[9]="/images/en/nav/nav_sitemap_1.gif";
  
  im = new Array()
  if(document.images) {
    for (var i = 0; i < imag.length; i++) {
      im[i] = new Image();
      im[i].src = imag[i];
      }
    }
//  Mouseover functions
function on(s) {
  if (okbrowser) {
    document.images[s].src= "/images/en/nav/nav_" + s + "_1.gif";
    }
  }

function off(s) {
  if (okbrowser) {
    document.images[s].src= "/images/en/nav/nav_" + s + "_0.gif";
    }
  }