JavaScript加载新页面问题

Question

我期待的是如果用户填写表单，它将提供对新位置的访问。

<script language="JavaScript" type="text/javascript">  
<!--  
function validateForm(theForm) {  
var firstname = theForm.firstname.value; 
var lastname = theForm.lastname.value;  
var email = theForm.email.value;  
if (firstname == "") {  
    alert("Please fill in your First Name.");  
    theForm.firstname.focus();  
    return false;  
} 
if (lastname == "") {  
    alert("Please fill in your Last Name.");  
    theForm.lastname.focus();  
    return false;  
} 

if (email == "") {  
    alert("Please fill in your email address.");  
    theForm.email.focus();  
    return false;  
}  
return true;  
} 

我知道这部分是错误的，但我不知道如何去做。任何帮助将是不错..

if lastname="" 
if firstname="" 
if email="" 
load('www.google.com'); 

Answer 1

if (validateForm(theForm)) window.location = 'http://www.google.com'; 

等同于使用

if (validateForm(theForm)) window.location.href = 'http://www.google.com'; 

双方将工作，所以选择你喜欢哪一个。

Answer 2

if lastname="" 
if firstname="" 
if email="" 
load('www.google.com'); 

成为

if ((lastname == "") && (firstname == "") && (email == "")) { 
    window.location = "http://www.google.com"; 
}