// define images
if(document.images) {

  image11 = new Image;
  image12 = new Image;
  image12a = new Image;
  image21 = new Image;
  image22 = new Image;
  image22a = new Image;
  image31 = new Image;
  image32 = new Image;
  image32a = new Image;
  image41 = new Image;
  image42 = new Image;
  image42a = new Image;
  image51 = new Image;
  image52 = new Image;
  image52a = new Image;
  image61 = new Image;
  image62 = new Image;
  image62a = new Image;


// source images
  image11.src = "images/ro_home_off.gif";
  image12.src = "images/ro_home_on.gif";
  image12a.src = "images/ro_home_on.gif";
  image21.src = "images/ro_about_off.gif";
  image22.src = "images/ro_about_on.gif";
  image22a.src = "images/ro_about_on.gif";
  image31.src = "images/ro_services_off.gif";
  image32.src = "images/ro_services_on.gif";
  image32a.src = "images/ro_services_on.gif";
  image41.src = "images/ro_contact_off.gif";
  image42.src = "images/ro_contact_on.gif";
  image42a.src = "images/ro_contact_on.gif";
  image51.src = "images/ro_faq_off.gif";
  image52.src = "images/ro_faq_on.gif";
  image52a.src = "images/ro_faq_on.gif";
  image61.src = "images/ro_demo_off.gif";
  image62.src = "images/ro_demo_on.gif";
  image62a.src = "images/ro_demo_on.gif";
}

// MouseOver Function

function swapOn(imgLocation) {
  if(document.images) {
    document.images[imgLocation].src = eval(imgLocation + "2.src");
  }
}

// MouseOut Function

function swapOff(imgLocation) {
  if(document.images) {
    document.images[imgLocation].src = eval(imgLocation + "1.src");
  }
}

// MouseClick Function

function swapClick(imgLocation) {
  if(document.images) {
    document.images[imgLocation].src = eval(imgLocation + "2a.src");
  }
}