function navActive() {
  var sPath = window.location.pathname;
  var sPage = sPath.substring(sPath.lastIndexOf('/') + 1);
  var aPage = sPage.substring(0, sPage.lastIndexOf('.'));
    if (aPage == '') {
      aPage = 'index';
    }
      var subP = aPage.substring(0, 2)    
      if (subP == 'pr'){
        aPage = 'products';
      }
      if (subP == 'e_'){
        aPage = 'events';
      }    
    var activePage = document.getElementById('m_'+aPage);
    if (activePage) {
      activePage.style.height = '125px';
    }
}