// disables right-click menu for images on a page
// by iterating through the document.images array and setting
// onmousedown properties for each element.

var isNS = (navigator.appName == "Netscape") ? 1 : 0;
var EnableRightClick = 0;
if(isNS) 
document.captureEvents(Event.MOUSEDOWN||Event.MOUSEUP);
function mischandler(){
if(EnableRightClick==1){ return true; }
else {return false; }
}
function mousehandler(e){
if(EnableRightClick==1){ return true; }
var myevent = (isNS) ? e : event;
var eventbutton = (isNS) ? myevent.which : myevent.button;
if((eventbutton==2)||(eventbutton==3)) return false;
}
function keyhandler(e) {
var myevent = (isNS) ? e : window.event;
if (myevent.keyCode==96)
EnableRightClick = 1;
return;
}
document.oncontextmenu = mischandler;
document.onkeypress = keyhandler;
document.onmousedown = mousehandler;
document.onmouseup = mousehandler;

function image_protection()
{
    for (img in window.document.images)
    {
        document.images[img].oncontextmenu = function oncontextmenu(event){return false;};
    }
    return true;
}