//Copyright (C) 2008, FFD Services LLC

function IE(e) {
    if (navigator.appName == "Microsoft Internet Explorer" && (event.button == "2" || event.button == "3"))
        return false;
}

function NS(e) {
    if (document.layers || (document.getElementById && !document.all)) {
        if (e.which == "2" || e.which == "3")
            return false;
    }
}

function handlePress(e) {
    var evtobj = window.event ? event : e;
    if (evtobj.ctrlKey || evtobj.altKey) {
        //alert("Can't use Ctrl or alt Key");
        return false;
    }
}

document.onmousedown = IE;
document.onmouseup = NS;
document.oncontextmenu = new Function("return false");
document.onkeydown = handlePress;