(event mouse click)Sự kiện click chuột

<script language="javascript">
    function notRight(){
        if(window.event.button==2){   //(nếu ==2 là righ_tclick nếu == 0 left_click)(if == 2 is right_click if ==0 is left_click)
            alert("this right Click:");
        }
    }
</script>
<body onmousedown="notRight()">
        <ul>
            <li>foo</li>
            <li>bar</li>
        </ul>
    <div id="phat">ggg</div>