//Get browser name
var nav=navigator.appName;
//Determine whether browser is Internet Explorer or Netscape
var ie=(nav.indexOf("Microsoft")!=-1);
var ns=(nav.indexOf("Netscape")!=-1);

//Disables right click in IE
function nrcIE(){
return false;
}

//Disables right click in NS versions 4 and up
function nrcNS(e){
//Check if mouse button pressed is the right one
if(e.which==2 || e.which==3){
return false;
}
 }

//If browser is IE, set the right click event to don't show the context menu when clicking
if(ie){
document.oncontextmenu=nrcIE;
}

//If browser is NS4, capture the right click event and set it to don't show the context menu when clicking
if(ns){
if(document.layers){
document.captureEvents(Event.MOUSEDOWN);
document.onmousedown=nrcNS;
}

//If browser is NS6 capture the right click event and set it to don't show the context menu when clicking
if(document.getElementById){
document.onmouseup=nrcNS;
}
 }

//Keep page out of frames
if(top.location!=self.location) top.location=self.location;