简单网页加密码

代码如下 在</head>前加入如下代码

  <SCRIPT language=JavaScript> 
    function password() { 
    var testV = 1; 
    var pass1 = prompt('请输入密码:',''); 
    while (testV < 3) { 
    if (!pass1) 
    history.go(-1); 
    if (pass1 == "3013") { 
    alert('密码正确!'); 
    break; 
    } 
    testV+=-1; 
    var pass1 = prompt('密码错误!请重新输入:'); 
    } 
    if (pass1!="password" & testV ==3) 
    history.go(-1); 
    return " "; 
    } 
    document.write(password()); 
</SCRIPT>