<!--
// made by: Nicolas - http://www.javascript-page.com

var mymessage = "Copyright (C) WSM. Prohibida la copia.";

function rtclickcheck(keyp){
  if (navigator.appName == "Netscape" && keyp.which == 3) {
    alert(mymessage);
    return false;
  }

  if (navigator.appVersion.indexOf("MSIE") != -1 && event.button == 2) {
    alert(mymessage);
    return false;
  }
}

document.onmousedown = rtclickcheck
//-->