function yaunclick() {

  alert('Buy Cancun');

}

function noclick(scx) {

  if (navigator.appName == "Netscape" && scx.which == 3) {

    yaunclick();

    return false;

  }

  if (navigator.appVersion.indexOf("MSIE") != -1 && event.button == 2) {

      yaunclick();

      return false;

  }

}

function mueve() {

  status='Buy Cancun';

}

document.onmousedown = noclick;

document.onmousemove = mueve;