if (document.images) {

  var home_off = new Image();
  var home_on = new Image();
  
  var about_off = new Image();
  var about_on = new Image();

  var clients_off = new Image();
  var clients_on = new Image();

  var case_off = new Image();
  var case_on = new Image();
  
  var products_off = new Image();
  var products_on = new Image();
  
  var design_off = new Image();
  var design_on = new Image();
  
  var press_off = new Image();
  var press_on = new Image();
  
  var contact_off = new Image();
  var contact_on = new Image();
  
  var zformat_off = new Image();
  var zformat_on = new Image();
  
  var cformat_off = new Image();
  var cformat_on = new Image();
  
  var kformat_off = new Image();
  var kformat_on = new Image();

  var zbooktop_off = new Image();
  var zbooktop_on = new Image();
  
  var zbookside_off = new Image();
  var zbookside_on = new Image();
  
  var guidelines_off = new Image();
  var guidelines_on = new Image();
  
  var portfolio_off = new Image();
  var portfolio_on = new Image();
  
  var download_off = new Image();
  var download_on = new Image();
  
 }

function loadImages() {
  if (document.images) {
  
    home_off.src = "/it/assets/images/it_menu/home.gif";
    home_on.src = "/it/assets/images/it_menu/home_over.gif";
  
    about_off.src = "/it/assets/images/it_menu/about.gif";
    about_on.src = "/it/assets/images/it_menu/about_over.gif";

    clients_off.src = "/it/assets/images/it_menu/clients.gif";
    clients_on.src = "/it/assets/images/it_menu/clients_over.gif";

    case_off.src = "/it/assets/images/it_menu/case_studies.gif";
    case_on.src = "/it/assets/images/it_menu/case_studies_over.gif";

    products_off.src = "/it/assets/images/it_menu/products.gif";
    products_on.src = "/it/assets/images/it_menu/products_over.gif";
    
    design_off.src = "/it/assets/images/it_menu/design.gif";
    design_on.src = "/it/assets/images/it_menu/design_over.gif";

    press_off.src = "/it/assets/images/it_menu/press.gif";
    press_on.src = "/it/assets/images/it_menu/press_over.gif";

    contact_off.src = "/it/assets/images/it_menu/contact.gif";
    contact_on.src = "/it/assets/images/it_menu/contact_over.gif";

    zformat_off.src = "/it/assets/images/design/nav_z_up.gif";
    zformat_on.src = "/it/assets/images/design/nav_z_over.gif";
	
    cformat_off.src = "/it/assets/images/design/nav_c_up.gif";
    cformat_on.src = "/it/assets/images/design/nav_c_over.gif";

    kformat_off.src = "/it/assets/images/design/nav_k_up.gif";
    kformat_on.src = "/it/assets/images/design/nav_k_over.gif";
	
    zbooktop_off.src = "/it/assets/images/design/nav_zbt_up.gif";
    zbooktop_on.src = "/it/assets/images/design/nav_zbt_over.gif";
    
    zbookside_off.src = "/it/assets/images/design/nav_zbs_up.gif";
    zbookside_on.src = "/it/assets/images/design/nav_zbs_over.gif";
    
    guidelines_off.src = "/it/assets/images/design/nav_design_guidelines_up.gif";
    guidelines_on.src = "/it/assets/images/design/nav_design_guidelines_over.gif";
    
    portfolio_off.src = "/it/assets/images/design/nav_design_portfolio_up.gif";
    portfolio_on.src = "/it/assets/images/design/nav_design_portfolio_over.gif";
    
    download_off.src = "/it/assets/images/design/nav_design_download_up.gif";
    download_on.src = "/it/assets/images/design/nav_design_download_over.gif";
    
  }
}


function activate(imgName) {
  if (document.images) {
    if ( eval(imgName + "_on.complete") ) {
      document.images[imgName].src = eval(imgName + "_on.src");
    }
  }
}

function deactivate(imgName) {
  if (document.images) {
    if ( eval(imgName + "_off.complete") ) {
      document.images[imgName].src = eval(imgName + "_off.src");
    }
  }
}