/////////////////////////////////
// Comprobar el explorador usado
/////////////////////////////////


  var verStr=navigator.appVersion, app=navigator.appName, version = parseFloat(verStr);
  var netscape = (app.indexOf('Netscape') != -1)?1:0;
  var explorer = (app.indexOf('Microsoft') != -1)?1:0;
  var sisop = navigator.platform;
  var cpu = navigator.cpuClass;


///////////////////////////////
// Control de Click secundario
///////////////////////////////

var mymessage = "® Manuel Jesus Marin";
function rtclickcheck(keyp){
  if (navigator.appName == "Netscape" && keyp.which == 3) {
    window.alert(mymessage);
    return false;
  }
  if (navigator.appVersion.indexOf("MSIE") != -1 && event.button == 2) {
    window.alert(mymessage);
    return false;
  }
}
document.onmousedown = rtclickcheck