var rightClickDisabledMessage = "";
function click(e) {
    if (isIE()) {
        if (event.button==2||event.button==3) setInterval("window.status='"+rightClickDisabledMessage+"'",10);
    }
    else {
        if (e.which == 3) setInterval("window.status='"+rightClickDisabledMessage+"'",10);
    }
}
if (document.layers) document.captureEvents(Event.MOUSEDOWN);

function disableRightClick() {
    document.onmousedown=click;
    document.oncontextmenu=new Function("return false");
}

function isIE() {
    var ua = window.navigator.userAgent
    var msie = ua.indexOf ( "MSIE" )

    if ( msie > 0 )      // If Internet Explorer, return 1
        return 1
    else                 // If another browser, return 0
        return 0
}