function newImage(arg) {
  if (document.images) {
    rslt = new Image();
    rslt.src = arg;
    return rslt;
  }
}

function changeImages() {
  if (document.images && (preloadFlag == true)) {
    for (var i=0; i<changeImages.arguments.length; i+=2) {
       document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
    }
  }
}

var preloadFlag = false;
function preloadImages() {
  if (document.images) {
    for (i=1;i<=9;i++)
      eval("p"+i+"over = newImage('images/p"+i+"_over.gif');");
    preloadFlag = true;
  }
}

function go(lang){
  s=new String(window.location);
  b=s.split('/');
  b[b.length-2]=lang;
  c=b[0];
  for (i=1;i<=b.length-1;i++) c=c+"/"+b[i];
  location.href=c;
}