about_on = new Image(212,27);
about_off = new Image(212,27);

services_on = new Image(212,27);
services_off = new Image(212,27);

partners_on = new Image(212,27);
partners_off = new Image(212,27);

portfolio_on = new Image(212,27);
portfolio_off = new Image(212,27);

contact_on = new Image(212,27);
contact_off = new Image(212,27);

login_on = new Image(212,27);
login_off = new Image(212,27);


about_on.src = "/gfx/about_on.gif";
services_on.src = "/gfx/services_on.gif";
partners_on.src = "/gfx/partners_on.gif";
portfolio_on.src = "/gfx/portfolio_on.gif";
contact_on.src = "/gfx/contact_on.gif";
login_on.src = "/gfx/login_on.gif";

about_off.src = "/gfx/about.gif";
services_off.src = "/gfx/services.gif";
partners_off.src = "/gfx/partners.gif";
portfolio_off.src = "/gfx/portfolio.gif";
contact_off.src = "/gfx/contact.gif";
login_off.src = "/gfx/login.gif";

function press(imgName) {
    if (document.images)
      document[imgName].src = eval(imgName + '_on.src');  
}
function release(imgName) {
  if (document.images)
    document[imgName].src = eval(imgName + '_off.src');  
}