// Code chống chuột phải 
    checkCtrl = false $('*').keydown(function(e) {
        if (e.keyCode == '17') {
            checkCtrl = false
        }
    }).keyup(function(ev) {
        if (ev.keyCode == '17') {
            checkCtrl = false
        }
    }).keydown(function(event) {
        if (checkCtrl) {
            if (event.keyCode == '85') {
                return false;
            }
        }
    })
// End Code chống chuột phải
// Code chống F12  
    var message = "NoRightClicking";
    function defeatIE() {
        if (document.all) {
            (message);
            return false;
        }
    }
    function defeatNS(e) {
        if (document.layers || (document.getElementById && !document.all)) {
            if (e.which == 2 || e.which == 3) {
                (message);
                return false;
            }
        }
    }
    if (document.layers) {
        document.captureEvents(Event.MOUSEDOWN);
        document.onmousedown = defeatNS;
    } else {
        document.onmouseup = defeatNS;
        document.oncontextmenu = defeatIE;
    }
    document.oncontextmenu = new Function("return false")
// End Code chống F12    
// Code chống quét khối   
function disableselect(e){
return false
}
function reEnable(){
return true
}
//if IE4+
document.onselectstart=new Function ("return false")
//if NS6
if (window.sidebar){
document.onmousedown=disableselect
document.onclick=reEnable
}

// End code chống quét khối