alertMsg = "Deze functie is uitgeschakeld!";



browserVersion = parseInt(navigator.appVersion)

isNetscape = navigator.appName=="Netscape"

isIE = navigator.appName=="Microsoft Internet Explorer"



function noRightClick(evnt) {

  if (isNetscape && evnt.which > 1){

   alert(alertMsg)

   return false

  } else if (isIE && (event.button > 1)) {

   alert(alertMsg)

   return false;

  }

}



document.onmousedown = noRightClick;

if (document.layers) window.captureEvents(Event.MOUSEDOWN);

if (isNetscape && browserVersion < 5) window.onmousedown = noRightClick;