// JavaScript Document
$(function(){
$(document).bind("contextmenu",function(e){ return false; });
});
if (typeof(document.onselectstart) != "undefined") {
// IE下禁止元素被选取
document.onselectstart = new Function("return false");
} else {
// firefox下禁止元素被选取的变通办法
document.onmousedown = new Function("return false");
document.onmouseup = new Function("return true");
}js防复制、禁止右键
原文：http://blog.csdn.net/huileiforever/article/details/45341799
