document.oncontextmenu = null; document.body.onpaste = null; document.body.onselectstart = null; document.onselectstart = null; document.ondragstart = null; document.body.oncut = null; document.onmousedown = null; document.body.oncontextmenu = null; document.body.oncopy = null; document.body.ondragstart = null; document.body.onmousedown = null;