<!--
function hover(a1) {
document.getElementById(a1).src='img/'+a1+'-over.gif';
document.getElementById('ef').src='img/main_ef_over.gif';
}
function link(a2) {
document.getElementById(a2).src='img/'+a2+'.gif';
document.getElementById('ef').src='img/main_ef.gif';
}

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

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

function changeImages() {
 changeImagesArray(changeImages.arguments);
}

function toggleImages() {
 for (var i=0; i<toggleImages.arguments.length; i+=2) {
  if (selected == toggleImages.arguments[i])      changeImagesArray(toggleImages.arguments[i+1]);
 }
}

var selected = '';
var preloadFlag = false;
function preloadImages() {
 if (document.images) {
  beginning = newImage("img/beginning-over.gif");
  contacts = newImage("img/contacts-over.gif");
  customers = newImage("img/customers-over.gif");
  portfolio = newImage("img/portfolio-over.gif");
  services = newImage("img/services-over.gif");
  team = newImage("img/team-over.gif");
  preloadFlag = true;
 }
}

//-->