window.onload=initAll

function initAll(){
CurrentNavLink();
}

function CurrentNavLink() {

if (!document.getElementsByTagName) return; 
var anchors = document.getElementsByTagName("a"); 
var thisPage = location.href;
if ((thisPage == 'http://www.northlancstraining.co.uk') || (thisPage == 'http://www.northlancstraining.co.uk/')){
       thisPage = "http://www.northlancstraining.co.uk/index.html";
}

for (var i=0; i<anchors.length; i++) { 
var anchor = anchors[i]; 
thisHREF = anchor.getAttribute("href");
//    if ((thisHREF == thisPage) && (anchor.className == 'nav')){ 
    if (thisHREF == thisPage){ 
     anchor.id = "current"; 
//     return; 
  } 
}
}